FHIR Osiris Implementation Guide
2.1.0 - ci-build

FHIR Osiris Implementation Guide - Local Development build (v2.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: VariantAnnotation - Detailed Descriptions

Draft as of 2024-03-21

Definitions for the variant-annotation resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Observation
2. Observation.subject
TypeReference(Oncology Patient)
Must Supporttrue
4. Observation.hasMember
Control2..2
TypeReference(Genome Entity, Annotation Reference)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
6. Observation.derivedFrom
Control1..2
TypeReference(Single Nucleotide Polymorphism, Gene Fusion, Gene Expression, Variant Copy Number, 5 Prime Molecular Sequence, 3 Prime Molecular Sequence)
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
SlicingThis element introduces a set of slices on Observation.derivedFrom. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • pattern @ reference
  • 8. Observation.component
    Control1..?
    10. Observation.component:gene-studied
    Slice Namegene-studied
    Control0..1
    Must Supporttrue
    12. Observation.component:gene-studied.value[x]
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    14. Observation.component:gene-studied.value[x].coding
    16. Observation.component:gene-studied.value[x].coding.code
    18. Observation.component:gene-studied.value[x].text
    Definition

    Gene symbol following the HUGO (Human Genome Organisation) nomenclature

    ShortGene name
    20. Observation.component:cytogenetic-location
    Slice Namecytogenetic-location
    Definition

    Name of the functional region of the gene containing the genetic alteration (example: exon 3).

    ShortGene region
    Control0..1
    Must Supporttrue
    22. Observation.component:cytogenetic-location.value[x]
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    24. Observation.component:cytogenetic-location.value[x].text
    Definition

    Name of the functional region of the gene containing the genetic alteration (example: exon 3).

    ShortGene region
    26. Observation.component:dna-chg
    Slice Namedna-chg
    Definition

    If the genetic alteration is located on a coding region of the gene, the incidence on this region is indicated according to the HGVS (Human Genome Variation Society) nomenclature. (example: c.12G>A).

    ShortIncidence on the coding region of the gene
    Must Supporttrue
    28. Observation.component:dna-chg.value[x]
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    30. Observation.component:dna-chg.value[x].coding
    32. Observation.component:dna-chg.value[x].coding.code
    34. Observation.component:dna-chg-type
    Slice Namedna-chg-type
    Definition

    The OSIRIS code of the type of genetic alteration.

    ShortType of alteration
    Control1..?
    Must Supporttrue
    36. Observation.component:dna-chg-type.value[x]
    Definition

    The OSIRIS code of the type of genetic alteration.

    ShortType of alteration
    BindingThe codes SHALL be taken from Alteration Type Value Set
    (required to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/AlterationType)
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    38. Observation.component:dna-chg-type.value[x].coding
    Control1..1
    Must Supporttrue
    40. Observation.component:dna-chg-type.value[x].coding.code
    42. Observation.component:genomic-dna-chg
    Slice Namegenomic-dna-chg
    Definition

    Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: g.289G>A)

    ShortGenomic incidence
    Must Supporttrue
    44. Observation.component:genomic-dna-chg.value[x]
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    46. Observation.component:genomic-dna-chg.value[x].coding
    48. Observation.component:genomic-dna-chg.value[x].coding.code
    50. Observation.component:amino-acid-chg
    Slice Nameamino-acid-chg
    Definition

    Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: p.Arg2322Cys)

    ShortIncidence on the protein
    Must Supporttrue
    52. Observation.component:amino-acid-chg.value[x]
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    54. Observation.component:amino-acid-chg.value[x].coding
    56. Observation.component:amino-acid-chg.value[x].coding.code
    58. Observation.component:amino-acid-chg-type
    Slice Nameamino-acid-chg-type
    Definition

    Nomenclature of changes at protein-level

    ShortNomenclature of changes at protein-level
    Must Supporttrue
    60. Observation.component:amino-acid-chg-type.value[x]
    Definition

    Nomenclature of changes at protein-level

    ShortNomenclature of changes at protein-level
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    62. Observation.component:amino-acid-chg-type.value[x].coding
    64. Observation.component:amino-acid-chg-type.value[x].coding.code
    66. Observation.component:mutation-prediction-software
    Slice Namemutation-prediction-software
    Control0..1
    Must Supporttrue
    68. Observation.component:mutation-prediction-software.code
    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "LP91038-7"
      }]
    }
    70. Observation.component:mutation-prediction-software.code.text
    Pattern ValuePrediction software
    72. Observation.component:mutation-prediction-software.value[x]
    Definition

    The name of the software used to predict the impact of the alteration on the protein.

    ShortPrediction software
    BindingFor example codes, see Mutation prediction Value Set
    (example to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/MutationPrediction)
    TypeCodeableConcept
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    74. Observation.component:mutation-prediction-software.value[x].coding
    76. Observation.component:mutation-prediction-software.value[x].coding.code
    78. Observation.component:mutation-prediction-score
    Slice Namemutation-prediction-score
    Control0..1
    Must Supporttrue
    80. Observation.component:mutation-prediction-score.code
    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "LP70194-3"
      }]
    }
    82. Observation.component:mutation-prediction-score.code.text
    Pattern ValuePrediction of the variation effect over the protein
    84. Observation.component:mutation-prediction-score.value[x]
    Definition

    Prediction of the variation effect over the protein

    ShortPrediction of the variation effect over the protein
    TypeQuantity
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    86. Observation.component:mutation-prediction-score.value[x].value
    88. Observation.component:mutation-prediction-evidence-value
    Slice Namemutation-prediction-evidence-value
    Control0..1
    Must Supporttrue
    90. Observation.component:mutation-prediction-evidence-value.code
    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "93044-6"
      }]
    }
    92. Observation.component:mutation-prediction-evidence-value.code.text
    Pattern ValueConfidence score
    94. Observation.component:mutation-prediction-evidence-value.value[x]
    Definition

    Confidence score given by the software.

    ShortConfidence score
    Typestring
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    96. Observation.component:rna-chg
    Slice Namerna-chg
    Definition

    Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: r.67g>u)

    ShortIncidence on the transcript
    Control0..1
    Must Supporttrue
    98. Observation.component:rna-chg.code
    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "LP232001-0"
      }]
    }
    100. Observation.component:rna-chg.code.text
    Pattern ValueIncidence on the transcript
    102. Observation.component:rna-chg.value[x]
    BindingUnless not suitable, these codes SHALL be taken from http://varnomen.hgvs.org
    (extensible to http://varnomen.hgvs.org)
    TypeCodeableConcept
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    104. Observation.component:rna-chg.value[x].coding
    106. Observation.component:rna-chg.value[x].coding.code
    108. Observation.component:on-splicing-site
    Slice Nameon-splicing-site
    Definition

    Is the variant at an alternative splice site?

    ShortSplice site
    Control0..1
    Must Supporttrue
    110. Observation.component:on-splicing-site.code
    Pattern Value{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/umls",
        "code" : "C0035687"
      }]
    }
    112. Observation.component:on-splicing-site.value[x]
    Typeboolean
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension

    Guidance on how to interpret the contents of this table can be found here

    0. Observation
    Definition

    Details about a set of changes in the tested sample compared to a reference sequence.


    Measurements and simple assertions made about a patient, device or other subject.

    ShortVariantMeasurements and simple assertions
    Comments

    This change can be simple/discrete (relatively short), structural (potentially very large), or complex (consisting of multiple independent co-occurring variations).


    Used for simple observations such as device measurements, laboratory atomic results, vital signs, height, weight, smoking status, comments, etc. Other resources are used to provide context for observations such as laboratory reports, etc.

    Control0..*
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Alternate NamesVital Signs, Measurement, Results, Tests
    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
    dom-6: A resource should have narrative for robust management (text.`div`.exists())
    obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present (dataAbsentReason.empty() or value.empty())
    obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present (value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty())
    2. Observation.implicitRules
    Definition

    A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

    ShortA set of rules under which this content was created
    Comments

    Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

    Control0..1
    This element is affected by the following invariants: ele-1
    Typeuri
    Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    4. Observation.extension:BodyStructure
    Slice NameBodyStructure
    Definition

    Allows associating observations to a particular portion of the patient - a fetus, a tumor, a lesion, etc.

    ShortTarget anatomic location or structure
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Body Site) (Extension Type: Reference(BodyStructure))
    Is Modifierfalse
    Must Supportfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    6. Observation.extension:SecondaryFinding
    Slice NameSecondaryFinding
    Definition

    Allows flagging observations that should be considered secondary findings.

    ShortSecondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when [Whole Exome Sequencing (WES)](https://en.wikipedia.org/wiki/Exome_sequencing) or [Whole Genome Sequencing (WGS)](https://en.wikipedia.org/wiki/Whole_genome_sequencing) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement. For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Secondary Finding) (Extension Type: CodeableConcept)
    Is Modifierfalse
    Must Supportfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    8. Observation.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    This element is affected by the following invariants: ele-1
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
    Summaryfalse
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    10. Observation.status
    Definition

    The status of the result value.

    Shortregistered | preliminary | final | amended +
    Comments

    … This should generally be 'completed' or 'revised'.


    This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

    Control1..1
    This element is affected by the following invariants: ele-1
    BindingThe codes SHALL be taken from ObservationStatushttp://hl7.org/fhir/ValueSet/observation-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/observation-status|4.0.1)

    Codes providing the status of an observation.

    Typecode
    Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supportfalse
    Summarytrue
    Requirements

    Need to track the status of individual results. Some results are finalized before the whole report is finalized.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Observation.category
    Definition

    A code that classifies the general type of observation being made.

    ShortClassification of type of observation
    Comments

    … This should be populated with 'lab'.


    In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

    Control10..*
    This element is affected by the following invariants: ele-1
    BindingThe codes SHOULD be taken from ObservationCategoryCodeshttp://hl7.org/fhir/ValueSet/observation-category
    (preferred to http://hl7.org/fhir/ValueSet/observation-category)

    Codes for high level observation categories.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Requirements

    Used for filtering what observations are retrieved and displayed.

    Pattern Value{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
        "code" : "laboratory"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. Observation.code
    Definition

    Where testing scenarios are intended to assess the prescence or absence of a known set of DNA variants (e.g. tumor profiling using genotyping technology), then the Genetic Variant Assessment is used in conjunction with answer list supports structured communication of these findings. Of note, 'No Call' is different from 'Absent', because 'No Call' did not result in the determination of the marker's presents or absents. This may be due to test failure or specimen specific context which renders the test ineffective.


    Describes what was observed. Sometimes this is called the observation "name".

    ShortGenetic variant assessmentType of observation (code / type)
    Comments

    All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

    Control1..1
    This element is affected by the following invariants: ele-1
    BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
    (example to http://hl7.org/fhir/ValueSet/observation-codes)

    Codes identifying names of simple observations.

    TypeCodeableConcept
    Is Modifierfalse
    Must Supportfalse
    Summarytrue
    Requirements

    Knowing what kind of observation is being made is essential to understanding the observation.

    Alternate NamesName
    Pattern Value{
      "coding" : [{
        "system" : "http://loinc.org",
        "code" : "69548-6"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. Observation.subject
    Definition

    The patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the focus element or the code itself specifies the actual focus of the observation.

    ShortWho and/or what the observation is about
    Comments

    … This must be the same patient as on the DiagnosticReport unless combining data from multiple fetuses or family members in a single report.


    One would expect this element to be a cardinality of 1..1. The only circumstance in which the subject can be missing is when the observation is made by a device that does not know the patient. In this case, the observation SHALL be matched to a patient through some context/channel matching technique, and at this point, the observation should be updated.

    Control0..1
    This element is affected by the following invariants: ele-1
    TypeReference(Oncology Patient, Patient, Group, Device, Location)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

    Observations have no value if you don't know who or what they're about.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
    18. Observation.effective[x]
    Definition

    The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

    ShortClinically relevant time/time-period for observation
    Comments

    At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.


    At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.

    Control0..1
    This element is affected by the following invariants: ele-1
    TypedateTime, Period, Timing, instant
    [x] NoteSee Choice of Data Types for further information about how to use [x]
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    Knowing when an observation was deemed true is important to its relevance as well as determining trends.

    Alternate NamesOccurrence
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    SlicingThis element introduces a set of slices on Observation.effective[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
    • type @ $this
    • 20. Observation.effective[x]:effectiveDateTime
      Slice NameeffectiveDateTime
      Definition

      The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

      ShortClinically relevant time/time-period for observation
      Comments

      At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.


      At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.

      Control0..1
      This element is affected by the following invariants: ele-1
      TypedateTime, Period, Timing, instant
      [x] NoteSee Choice of Data Types for further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supportfalse
      Summarytrue
      Requirements

      Knowing when an observation was deemed true is important to its relevance as well as determining trends.

      Alternate NamesOccurrence
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. Observation.performer
      Definition

      Who was responsible for asserting the observed value as "true".

      ShortWho is responsible for the observation
      Comments

      References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

      Control0..1*
      This element is affected by the following invariants: ele-1
      TypeReference(Practitioner, Organization, Patient, RelatedPerson, PractitionerRole, CareTeam)
      Is Modifierfalse
      Must Supportfalse
      Summarytrue
      Requirements

      May give a degree of confidence in the observation and also indicates where follow-up questions should be directed.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
      24. Observation.value[x]
      Definition

      Indicates whether the indicated variation was found or not.


      The information determined as a result of making the observation, if the information has a simple value.

      ShortPresent|Absent|No call|IndeterminateActual result
      Comments

      If not searching for specific variations and merely reporting what's found, this element should be set to "Present".


      An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

      Control10..1
      This element is affected by the following invariants: obs-7, ele-1
      BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL1971-2
      (required to http://loinc.org/vs/LL1971-2)

      Genetic Variant Assessment

      TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
      [x] NoteSee Choice of Data Types for further information about how to use [x]
      Is Modifierfalse
      Must Supportfalse
      Summarytrue
      Requirements

      An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. Observation.interpretation
      Definition

      A categorical assessment of an observation value. For example, high, low, normal.

      ShortHigh, low, normal, etc.
      Comments

      Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

      Control0..0*
      This element is affected by the following invariants: ele-1
      BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
      (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

      Codes identifying interpretations of observations.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Requirements

      For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

      Alternate NamesAbnormal Flag
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. Observation.hasMember
      Definition

      This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

      ShortRelated resource that belongs to the Observation group
      Comments

      When using this element, an observation will typically have either a value or a set of related resources, although both may be present in some cases. For a discussion on the ways Observations can assembled in groups together, see Notes below. Note that a system may calculate results from QuestionnaireResponse into a final score and represent the score as an Observation.


      When using this element, an observation will typically have either a value or a set of related resources, although both may be present in some cases. For a discussion on the ways Observations can assembled in groups together, see Notes below. Note that a system may calculate results from QuestionnaireResponse into a final score and represent the score as an Observation.

      Control20..2*
      This element is affected by the following invariants: ele-1
      TypeReference(Genome Entity, Annotation Reference, Observation, QuestionnaireResponse, MolecularSequence)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
      30. Observation.derivedFrom
      Definition

      The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

      ShortRelated measurements the observation is made from
      Comments

      All the reference choices that are listed in this element can represent clinical observations and other measurements that may be the source for a derived value. The most common reference will be another Observation. For a discussion on the ways Observations can assembled in groups together, see Notes below.


      All the reference choices that are listed in this element can represent clinical observations and other measurements that may be the source for a derived value. The most common reference will be another Observation. For a discussion on the ways Observations can assembled in groups together, see Notes below.

      Control10..2*
      This element is affected by the following invariants: ele-1
      TypeReference(Single Nucleotide Polymorphism, Gene Fusion, Gene Expression, Variant Copy Number, 5 Prime Molecular Sequence, 3 Prime Molecular Sequence, DocumentReference, ImagingStudy, Media, QuestionnaireResponse, Observation, MolecularSequence)
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ref-1: SHALL have a contained resource if a local reference is provided (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')))
      SlicingThis element introduces a set of slices on Observation.derivedFrom. The slices are unordered and Open, and can be differentiated using the following discriminators:
      • pattern @ reference
      • 32. Observation.component
        Definition

        Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

        ShortComponent results
        Comments

        For a discussion on the ways Observations can be assembled in groups together see Notes below.


        For a discussion on the ways Observations can be assembled in groups together see Notes below.

        Control10..*
        This element is affected by the following invariants: ele-1
        TypeBackboneElement
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        SlicingThis element introduces a set of slices on Observation.component. The slices are unordered and Open, and can be differentiated using the following discriminators:
        • pattern @ code
        • 34. Observation.component.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          36. Observation.component.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. Observation.component.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. Observation.component:gene-studied
          Slice Namegene-studied
          Definition

          HUGO Gene Nomenclature Committee (HGNC) identifier for a gene. List the gene(s) examined in full or in part by the study. If the study addresses multiple genes, these can be recorded in multiple gene studied components . The required coding will use the HGNC gene symbol as the display text and HGNC gene ID as the code.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGene studied IDComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          42. Observation.component:gene-studied.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          44. Observation.component:gene-studied.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48018-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. Observation.component:gene-studied.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortIf no HGNC code issued for this gene yet, NCBI gene IDs SHALL be used.Actual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see HGNC
          (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgnc)

          HGNC: Human Gene Nomenclature Committee

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          48. Observation.component:gene-studied.value[x].text
          Definition

          Gene symbol following the HUGO (Human Genome Organisation) nomenclature


          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortGene namePlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          50. Observation.component:gene-studied.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          52. Observation.component:cytogenetic-location
          Slice Namecytogenetic-location
          Definition

          Name of the functional region of the gene containing the genetic alteration (example: exon 3).


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGene regionComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          54. Observation.component:cytogenetic-location.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          56. Observation.component:cytogenetic-location.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48001-2"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          58. Observation.component:cytogenetic-location.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. Observation.component:cytogenetic-location.value[x].text
          Definition

          Name of the functional region of the gene containing the genetic alteration (example: exon 3).


          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortGene regionPlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          62. Observation.component:cytogenetic-location.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          64. Observation.component:ref-sequence-assembly
          Slice Nameref-sequence-assembly
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortHuman reference sequence assembly versionComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          66. Observation.component:ref-sequence-assembly.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          68. Observation.component:ref-sequence-assembly.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "62374-4"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          70. Observation.component:ref-sequence-assembly.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL1040-6
          (extensible to http://loinc.org/vs/LL1040-6)

          Human reference sequence NCBI build IDs

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          72. Observation.component:ref-sequence-assembly.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          74. Observation.component:dna-chg
          Slice Namedna-chg
          Definition

          If the genetic alteration is located on a coding region of the gene, the incidence on this region is indicated according to the HGVS (Human Genome Variation Society) nomenclature. (example: c.12G>A).


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortIncidence on the coding region of the geneComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          76. Observation.component:dna-chg.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          78. Observation.component:dna-chg.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48004-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          80. Observation.component:dna-chg.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see HGVS
          (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

          HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          82. Observation.component:dna-chg.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          84. Observation.component:dna-chg-type
          Slice Namedna-chg-type
          Definition

          The OSIRIS code of the type of genetic alteration.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortType of alterationComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control10..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          86. Observation.component:dna-chg-type.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          88. Observation.component:dna-chg-type.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48019-4"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          90. Observation.component:dna-chg-type.value[x]
          Definition

          The OSIRIS code of the type of genetic alteration.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortType of alterationActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see Alteration Type Value Set
          (required to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/AlterationType)
          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          92. Observation.component:dna-chg-type.value[x].coding
          Definition

          A reference to a code defined by a terminology system.

          ShortCode defined by a terminology system
          Comments

          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

          Control10..1*
          This element is affected by the following invariants: ele-1
          TypeCoding
          Must Supporttrue
          Summarytrue
          Requirements

          Allows for alternative encodings within a code system, and translations to other code systems.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          94. Observation.component:dna-chg-type.value[x].coding.code
          Definition

          A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

          ShortSymbol in syntax defined by the system
          Comments

          Note that FHIR strings SHALL NOT exceed 1MB in size

          Control0..1
          This element is affected by the following invariants: ele-1
          Typecode
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Need to refer to a particular code in the system.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          96. Observation.component:dna-chg-type.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          98. Observation.component:functional-annotation
          Slice Namefunctional-annotation
          Definition

          Annotated changes to sequence features caused by this variant.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortFunctional AnnotationComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          100. Observation.component:functional-annotation.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          102. Observation.component:functional-annotation.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
              "code" : "functional-annotation"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          104. Observation.component:functional-annotation.value[x]
          Definition

          Changes to sequence features caused by this variant.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortConcepts in sequence ontology under SO:0001537 (see http://www.sequenceontology.org/browser/current_release/term/SO:0001537)Actual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see Functional Annotation
          (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/functional-annotation)

          Functional Annotation (Sequence Ontology)

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          106. Observation.component:functional-annotation.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          108. Observation.component:variation-code
          Slice Namevariation-code
          Definition

          This term is used to report the unique identifier of the simple variant found in this study.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortVariation CodeComponent results
          Comments

          If this is present, the components can be omitted but they might be included to avoid a need to look up the information in a registry. Typically only one code would be present, though multiple codings expressing the variant in different code systems are possible.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          110. Observation.component:variation-code.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          112. Observation.component:variation-code.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81252-9"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          114. Observation.component:variation-code.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          116. Observation.component:variation-code.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          118. Observation.component:dbSNP-id
          Slice NamedbSNP-id
          Definition

          The unique identifier for the variant represented as a small nucleotide polymorphism (SNP). The dbSNP ID is used routinely as the base identifier in pharmacogenomics as well as arrCGH studies. For example, for the simple variant NM_014049.4(ACAD9):c.1249C>T (p.Arg417Cys), the dbSNP ID is 368949613. [http://www.ncbi.nlm.nih.gov/clinvar/variation/30880/].


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortdbSNP IDComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          120. Observation.component:dbSNP-id.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          122. Observation.component:dbSNP-id.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81255-2"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          124. Observation.component:dbSNP-id.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          126. Observation.component:dbSNP-id.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          128. Observation.component:genomic-dna-chg
          Slice Namegenomic-dna-chg
          Definition

          Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: g.289G>A)


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic incidenceComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          130. Observation.component:genomic-dna-chg.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          132. Observation.component:genomic-dna-chg.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81290-9"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          134. Observation.component:genomic-dna-chg.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see HGVS
          (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

          HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          136. Observation.component:genomic-dna-chg.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          138. Observation.component:genomic-source-class
          Slice Namegenomic-source-class
          Definition

          The genomic class of the specimen being analyzed: Germline for inherited genome, somatic for cancer genome, and prenatal for fetal genome.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic source classComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          140. Observation.component:genomic-source-class.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          142. Observation.component:genomic-source-class.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48002-0"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          144. Observation.component:genomic-source-class.value[x]
          Definition

          MG_2_Genetic variant source.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortGermline | Somatic | Fetal | Likely germline | Likely somatic |Likely fetal | Unknown genomic origin | De novoActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL378-1
          (extensible to http://loinc.org/vs/LL378-1)

          Genomic source class values

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          146. Observation.component:genomic-source-class.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          148. Observation.component:amino-acid-chg
          Slice Nameamino-acid-chg
          Definition

          Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: p.Arg2322Cys)


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortIncidence on the proteinComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          150. Observation.component:amino-acid-chg.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          152. Observation.component:amino-acid-chg.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48005-3"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          154. Observation.component:amino-acid-chg.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see HGVS
          (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

          HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          156. Observation.component:amino-acid-chg.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          158. Observation.component:amino-acid-chg-type
          Slice Nameamino-acid-chg-type
          Definition

          Nomenclature of changes at protein-level


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortNomenclature of changes at protein-levelComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          160. Observation.component:amino-acid-chg-type.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          162. Observation.component:amino-acid-chg-type.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48006-1"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          164. Observation.component:amino-acid-chg-type.value[x]
          Definition

          Nomenclature of changes at protein-level


          The information determined as a result of making the observation, if the information has a simple value.

          ShortNomenclature of changes at protein-levelActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL380-7
          (required to http://loinc.org/vs/LL380-7)

          Amino acid change type values

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          166. Observation.component:amino-acid-chg-type.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          168. Observation.component:transcript-ref-seq
          Slice Nametranscript-ref-seq
          Definition

          This field carries the ID for the transcribed reference sequence, which is the part of the genomic reference sequence that is converted to messenger RNA (i.e., after the introns are removed).


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortTranscript reference sequence IDComponent results
          Comments

          Only needed if the transcript sequence or genomic reference sequence versions don't indicate the version.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          170. Observation.component:transcript-ref-seq.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          172. Observation.component:transcript-ref-seq.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "51958-7"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          174. Observation.component:transcript-ref-seq.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          176. Observation.component:transcript-ref-seq.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          178. Observation.component:genomic-ref-seq
          Slice Namegenomic-ref-seq
          Definition

          This field carries the ID for the genomic reference sequence. The genomic reference sequence is a contiguous stretch of chromosome DNA that spans all of the exons of the gene and includes transcribed and non transcribed stretches. For this ID use either the NCBI genomic nucleotide RefSeq IDs with their version number (see: NCBI.NLM.NIH.Gov/RefSeq) or use the LRG identifiers, without transcript (t or p) extensions -- when they become available. (See- Report sponsored by GEN2PHEN at the European Bioinformatics Institute at Hinxton UK April 24-25, 2008). The NCI RefSeq genomic IDs are distinguished by a prefix of"NG" for genes from the nuclear chromosomes and prefix of "NC" for genes from mitochondria. The LRG Identifiers have a prefix of "LRG_" Mitochondrial genes are not in the scope of LRG.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic reference sequence IDComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          180. Observation.component:genomic-ref-seq.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          182. Observation.component:genomic-ref-seq.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "48013-7"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          184. Observation.component:genomic-ref-seq.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          186. Observation.component:genomic-ref-seq.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          188. Observation.component:sample-allelic-frequency
          Slice Namesample-allelic-frequency
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortSample Allelic FrequencyComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          190. Observation.component:sample-allelic-frequency.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          192. Observation.component:sample-allelic-frequency.code
          Definition

          The fraction of all reads in a study sample at a given genomic locus that identify the allele (variant) in question.


          Describes what was observed. Sometimes this is called the observation "code".

          ShortSample Sample VAFType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81258-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          194. Observation.component:sample-allelic-frequency.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          196. Observation.component:sample-allelic-frequency.value[x].value
          Definition

          The value of the measured amount. The value includes an implicit precision in the presentation of the value.

          ShortNumerical value (with implicit precision)
          Comments

          The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

          Control10..1
          This element is affected by the following invariants: ele-1
          Typedecimal
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Requirements

          Precision is handled implicitly in almost all cases of measurement.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          198. Observation.component:sample-allelic-frequency.value[x].comparator
          Definition

          How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

          Short< | <= | >= | > - how to understand the value
          Comments

          Note that FHIR strings SHALL NOT exceed 1MB in size

          Control0..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1
          (required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

          How the Quantity should be understood and represented.

          Typecode
          Is Modifiertrue because This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

          Meaning if MissingIf there is no comparator, then there is no modification of the value
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          200. Observation.component:sample-allelic-frequency.value[x].system
          Definition

          The identification of the system that provides the coded form of the unit.

          ShortSystem that defines coded unit form
          Comments

          see http://en.wikipedia.org/wiki/Uniform_resource_identifier

          Control10..1
          This element is affected by the following invariants: qty-3, ele-1
          Typeuri
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Requirements

          Need to know the system that defines the coded form of the unit.

          Fixed Valuehttp://unitsofmeasure.org
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          202. Observation.component:sample-allelic-frequency.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          204. Observation.component:allelic-read-depth
          Slice Nameallelic-read-depth
          Definition

          Specifies the number of reads that identified the allele in question whether it consists of one or a small sequence of contiguous nucleotides. Different methods and purposes require different numbers of reads to be acceptable. Often >400, sometimes as few as 2-4.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortAllelic read depthComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          206. Observation.component:allelic-read-depth.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          208. Observation.component:allelic-read-depth.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "82121-5"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          210. Observation.component:allelic-read-depth.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          212. Observation.component:allelic-read-depth.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          214. Observation.component:allelic-state
          Slice Nameallelic-state
          Definition

          The level of occurrence of a single DNA Marker within a set of chromosomes. Heterozygous indicates the DNA Marker is only present in one of the two genes contained in homologous chromosomes. Homozygous indicates the DNA Marker is present in both genes contained in homologous chromosomes. Hemizygous indicates the DNA Marker exists in the only single copy of a gene in a non-homologous chromosome (The male X and Y chromosome are non-homologous). Hemiplasmic indicates that the DNA Marker is present in some but not all of the copies of mitochondrial DNA. Homoplasmic indicates that the DNA Maker is present in all of the copies of mitochondrial DNA.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortAllelic stateComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          216. Observation.component:allelic-state.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          218. Observation.component:allelic-state.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "53034-5"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          220. Observation.component:allelic-state.value[x]
          Definition

          The relationship between the alleles found at the same locus on different chromosomes.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortHeteroplasmic | Homoplasmic | Homozygous | Heterozygous | HemizygousActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL381-5
          (extensible to http://loinc.org/vs/LL381-5)

          Allelic state type values

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          222. Observation.component:allelic-state.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          224. Observation.component:copy-number
          Slice Namecopy-number
          Definition

          The copy number of the large variant. In HGVS, this is the numeric value following the “X”. It is a unit-less value. Note that a copy number of 1 implies a deletion. The copy number can usually be inferred from the HGVS or ISCN fields.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic structural variant copy numberComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          226. Observation.component:copy-number.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          228. Observation.component:copy-number.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "82155-3"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          230. Observation.component:copy-number.value[x]
          Definition

          A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortA measured or measurable amountActual component result
          Comments

          The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(Count), dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantscnt-3: There SHALL be a code with a value of "1" if there is a value. If system is present, it SHALL be UCUM. If present, the value SHALL be a whole number. ((code.exists() or value.empty()) and (system.empty() or system = %ucum) and (code.empty() or code = '1') and (value.empty() or value.hasValue().not() or value.toString().contains('.').not()))
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          232. Observation.component:copy-number.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          234. Observation.component:ref-allele
          Slice Nameref-allele
          Definition

          Reference values ("normal") examined within the Reference Sequence.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic ref alleleComponent results
          Comments

          This is used in a genotyping test to define the reference and variable nucleotide strings. That is if the sequence variation is an insertion, then Reference Nucleotide will be blank and Variable Nucleotide will contain the inserted nucleotides. In contrast, if the sequence variation is a deletion, then the Reference Nucleotide will contain the deleted nucliotieds, and the Variable Nucleotide will be blank.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          236. Observation.component:ref-allele.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          238. Observation.component:ref-allele.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "69547-8"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          240. Observation.component:ref-allele.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          242. Observation.component:ref-allele.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          244. Observation.component:alt-allele
          Slice Namealt-allele
          Definition

          The genomic alternate allele is the contiguous segment of DNA in the test sample that differs from the reference allele at the same location and thus defines a variant.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortGenomic alt alleleComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          246. Observation.component:alt-allele.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          248. Observation.component:alt-allele.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "69551-0"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          250. Observation.component:alt-allele.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          252. Observation.component:alt-allele.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          254. Observation.component:coordinate-system
          Slice Namecoordinate-system
          Definition

          Base number of coordinate system either 0-based, with inclusive start and exclusive end (called interval), or 1-based, with inclusive start and end. However, two versions of 1-based are in common use.These systems are HGVS 1-based (called variant method) and VCF 1-based (called alignment method). In general, HGVS recommends right-justification and VCF recommends left-justification. However, these systems further address questions such as wheather or not to place an insertion before or after the nucleotide, and, if always placed before the nucleotide, how to handle insertion after the end of the sequence. Additionally, the systems deal with handling boundary effects of numbers between features. For more details see the HGVS and VCF guides.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortCoordinate SystemComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          256. Observation.component:coordinate-system.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          258. Observation.component:coordinate-system.code
          Definition

          This captures the base numbering used to calculate base positions in the reported sequence information.


          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "92822-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          260. Observation.component:coordinate-system.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          Short0-based interval | 0-based character | 1-based characterActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHOULD be taken from For codes, see LOINC Answer List LL5323-2
          (preferred to http://loinc.org/vs/LL5323-2)

          Base coordinate systems start and end measurements for variants

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          262. Observation.component:coordinate-system.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          264. Observation.component:exact-start-end
          Slice Nameexact-start-end
          Definition

          This location is the first genomic position in the reference allele that contains a change from the reference allele. For example, for the simple variant NM_014049.4(ACAD9):c.1249C>T (p.Arg417Cys), the location is Chr3: 128906220 on Assembly GRCh38.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortExact start-endComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          266. Observation.component:exact-start-end.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          268. Observation.component:exact-start-end.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
              "code" : "exact-start-end"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          270. Observation.component:exact-start-end.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          272. Observation.component:exact-start-end.value[x].low
          Definition

          The low limit. The boundary is inclusive.

          ShortExact StartLow limit
          Comments

          If the low element is missing, the low boundary is not known.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          274. Observation.component:exact-start-end.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          276. Observation.component:variant-length
          Slice Namevariant-length
          Definition

          Length of the structural variant, which information may be ascertained in some but not all types of structural variants.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortStructural variant lengthComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          278. Observation.component:variant-length.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          280. Observation.component:variant-length.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81300-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          282. Observation.component:variant-length.value[x]
          Definition

          A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortA measured or measurable amountActual component result
          Comments

          The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(Count), dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantscnt-3: There SHALL be a code with a value of "1" if there is a value. If system is present, it SHALL be UCUM. If present, the value SHALL be a whole number. ((code.exists() or value.empty()) and (system.empty() or system = %ucum) and (code.empty() or code = '1') and (value.empty() or value.hasValue().not() or value.toString().contains('.').not()))
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          284. Observation.component:variant-length.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          286. Observation.component:outer-start-end
          Slice Nameouter-start-end
          Definition

          The genomic coordinates of the widest genomic range in which the variant might reside.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortVariant outer start and endComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          288. Observation.component:outer-start-end.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          290. Observation.component:outer-start-end.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
              "code" : "outer-start-end"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          292. Observation.component:outer-start-end.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          294. Observation.component:outer-start-end.value[x].low
          Definition

          The low limit. The boundary is inclusive.

          ShortLow limit
          Comments

          If the low element is missing, the low boundary is not known.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          296. Observation.component:outer-start-end.value[x].high
          Definition

          The high limit. The boundary is inclusive.

          ShortHigh limit
          Comments

          If the high element is missing, the high boundary is not known.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          298. Observation.component:outer-start-end.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          300. Observation.component:inner-start-end
          Slice Nameinner-start-end
          Definition

          The genomic coordinates of the narrowest genomic range in which the structural variant might reside.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortVariant inner start and endComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          302. Observation.component:inner-start-end.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          304. Observation.component:inner-start-end.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
              "code" : "inner-start-end"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          306. Observation.component:inner-start-end.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          308. Observation.component:inner-start-end.value[x].low
          Definition

          The low limit. The boundary is inclusive.

          ShortLow limit
          Comments

          If the low element is missing, the low boundary is not known.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          310. Observation.component:inner-start-end.value[x].high
          Definition

          The high limit. The boundary is inclusive.

          ShortHigh limit
          Comments

          If the high element is missing, the high boundary is not known.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          312. Observation.component:inner-start-end.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          314. Observation.component:chromosome-copy-number-change-type
          Slice Namechromosome-copy-number-change-type
          Definition

          The type of the chromosome copy number change.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortChromosome copy number change typeComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          316. Observation.component:chromosome-copy-number-change-type.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          318. Observation.component:chromosome-copy-number-change-type.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "62378-5"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          320. Observation.component:chromosome-copy-number-change-type.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortCopy number gain | Copy number lossActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL1041-4
          (required to http://loinc.org/vs/LL1041-4)

          Copy Number Change Types

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          322. Observation.component:chromosome-copy-number-change-type.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          324. Observation.component:arrCGH-ratio
          Slice NamearrCGH-ratio
          Definition

          todo.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortStructural variant reported arrCGH [Ratio]Component results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          326. Observation.component:arrCGH-ratio.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          328. Observation.component:arrCGH-ratio.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81299-0"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          330. Observation.component:arrCGH-ratio.value[x]
          Definition

          The comparator is not used on a SimpleQuantity


          The information determined as a result of making the observation, if the information has a simple value.

          ShortA fixed quantity (no comparator)Actual component result
          Comments

          The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          TypeQuantity(SimpleQuantity), dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
          sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
          332. Observation.component:arrCGH-ratio.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          334. Observation.component:complex-var-type
          Slice Namecomplex-var-type
          Definition

          The type of complex variant, for example, compound heterozygous or haplotype.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortComplex variant typeComponent results
          Comments

          When sending a grouping of non-contiguous variants that are meant to be interpreted together but do not signify a named haplotype, one can send the type of complex variant here (determined by where the individual changes are in relation to each other), and use Observation.hasMember to reference the individual variants, which would then be described as normal.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          336. Observation.component:complex-var-type.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          338. Observation.component:complex-var-type.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81263-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          340. Observation.component:complex-var-type.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortCompound heterozygous | Double heterozygous | Haplotype | HemizygousActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL3999-1
          (required to http://loinc.org/vs/LL3999-1)

          Complex variant type

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          342. Observation.component:complex-var-type.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          344. Observation.component:cytogenomic-nomenclature
          Slice Namecytogenomic-nomenclature
          Definition

          Fully describes a variant with a single code. Typically a large variant such as a mosaic, abnormal chromosome numbers, etc.


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortCytogenomic NomenclatureComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          346. Observation.component:cytogenomic-nomenclature.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          348. Observation.component:cytogenomic-nomenclature.code
          Definition

          ISCN is a syntax for describing cytogenetic findings, from classical karyotypes to details that can be observed with copy number methodologies. Using ISCN nomenclature is highly recommended for reporting structural variants.


          Describes what was observed. Sometimes this is called the observation "code".

          ShortVariant ISCNType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "81291-7"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          350. Observation.component:cytogenomic-nomenclature.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          Binding

          Binding not yet defined

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          352. Observation.component:cytogenomic-nomenclature.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          354. Observation.component:variant-inheritance
          Slice Namevariant-inheritance
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortVariant InheritanceComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          356. Observation.component:variant-inheritance.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          358. Observation.component:variant-inheritance.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
              "code" : "variant-inheritance"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          360. Observation.component:variant-inheritance.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control10..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see Variant Inheritance
          (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/variant-inheritance)

          Variant Inheritance (Sequence Ontology)

          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          362. Observation.component:variant-inheritance.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          364. Observation.component:mutation-prediction-software
          Slice Namemutation-prediction-software
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          366. Observation.component:mutation-prediction-software.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          368. Observation.component:mutation-prediction-software.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "LP91038-7"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          370. Observation.component:mutation-prediction-software.code.text
          Definition

          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortPlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Pattern ValuePrediction software
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          372. Observation.component:mutation-prediction-software.value[x]
          Definition

          The name of the software used to predict the impact of the alteration on the protein.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortPrediction softwareActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control0..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see For codes, see Mutation prediction Value Set
          (example to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/MutationPrediction)
          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          374. Observation.component:mutation-prediction-software.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          376. Observation.component:mutation-prediction-score
          Slice Namemutation-prediction-score
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          378. Observation.component:mutation-prediction-score.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          380. Observation.component:mutation-prediction-score.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "LP70194-3"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          382. Observation.component:mutation-prediction-score.code.text
          Definition

          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortPlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Pattern ValuePrediction of the variation effect over the protein
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          384. Observation.component:mutation-prediction-score.value[x]
          Definition

          Prediction of the variation effect over the protein


          The information determined as a result of making the observation, if the information has a simple value.

          ShortPrediction of the variation effect over the proteinActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control0..1
          This element is affected by the following invariants: ele-1
          TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          386. Observation.component:mutation-prediction-score.value[x].value
          Definition

          The value of the measured amount. The value includes an implicit precision in the presentation of the value.

          ShortNumerical value (with implicit precision)
          Comments

          The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

          Control0..1
          This element is affected by the following invariants: ele-1
          Typedecimal
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Precision is handled implicitly in almost all cases of measurement.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          388. Observation.component:mutation-prediction-score.value[x].comparator
          Definition

          How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

          Short< | <= | >= | > - how to understand the value
          Comments

          Note that FHIR strings SHALL NOT exceed 1MB in size

          Control0..1
          This element is affected by the following invariants: ele-1
          BindingThe codes SHALL be taken from QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1
          (required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

          How the Quantity should be understood and represented.

          Typecode
          Is Modifiertrue because This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

          Meaning if MissingIf there is no comparator, then there is no modification of the value
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          390. Observation.component:mutation-prediction-score.value[x].system
          Definition

          The identification of the system that provides the coded form of the unit.

          ShortSystem that defines coded unit form
          Comments

          see http://en.wikipedia.org/wiki/Uniform_resource_identifier

          Control0..1
          This element is affected by the following invariants: ele-1, qty-3
          Typeuri
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          Need to know the system that defines the coded form of the unit.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          392. Observation.component:mutation-prediction-score.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          394. Observation.component:mutation-prediction-evidence-value
          Slice Namemutation-prediction-evidence-value
          Definition

          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          396. Observation.component:mutation-prediction-evidence-value.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          398. Observation.component:mutation-prediction-evidence-value.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "93044-6"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          400. Observation.component:mutation-prediction-evidence-value.code.text
          Definition

          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortPlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Pattern ValueConfidence score
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          402. Observation.component:mutation-prediction-evidence-value.value[x]
          Definition

          Confidence score given by the software.


          The information determined as a result of making the observation, if the information has a simple value.

          ShortConfidence scoreActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          404. Observation.component:mutation-prediction-evidence-value.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          406. Observation.component:rna-chg
          Slice Namerna-chg
          Definition

          Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: r.67g>u)


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortIncidence on the transcriptComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          408. Observation.component:rna-chg.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          410. Observation.component:rna-chg.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "LP232001-0"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          412. Observation.component:rna-chg.code.text
          Definition

          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

          ShortPlain text representation of the concept
          Comments

          Very often the text is the same as a displayName of one of the codings.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

          Pattern ValueIncidence on the transcript
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          414. Observation.component:rna-chg.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control0..1
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from For codes, see http://varnomen.hgvs.org
          (extensible to http://varnomen.hgvs.org)
          TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          416. Observation.component:rna-chg.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          418. Observation.component:on-splicing-site
          Slice Nameon-splicing-site
          Definition

          Is the variant at an alternative splice site?


          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

          ShortSplice siteComponent results
          Comments

          For a discussion on the ways Observations can be assembled in groups together see Notes below.


          For a discussion on the ways Observations can be assembled in groups together see Notes below.

          Control0..1*
          This element is affected by the following invariants: ele-1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          420. Observation.component:on-splicing-site.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.


          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          422. Observation.component:on-splicing-site.code
          Definition

          Describes what was observed. Sometimes this is called the observation "code".

          ShortType of component observation (code / type)
          Comments

          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

          Control1..1
          This element is affected by the following invariants: ele-1
          BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes
          (example to http://hl7.org/fhir/ValueSet/observation-codes)

          Codes identifying names of simple observations.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing what kind of observation is being made is essential to understanding the observation.

          Pattern Value{
            "coding" : [{
              "system" : "http://terminology.hl7.org/CodeSystem/umls",
              "code" : "C0035687"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          424. Observation.component:on-splicing-site.value[x]
          Definition

          The information determined as a result of making the observation, if the information has a simple value.

          ShortActual component result
          Comments

          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.


          Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

          Control0..1
          This element is affected by the following invariants: ele-1
          Typeboolean, dateTime, string, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
          [x] NoteSee Choice of Data Types for further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          426. Observation.component:on-splicing-site.interpretation
          Definition

          A categorical assessment of an observation value. For example, high, low, normal.

          ShortHigh, low, normal, etc.
          Comments

          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

          Control0..0*
          This element is affected by the following invariants: ele-1
          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretation
          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

          Codes identifying interpretations of observations.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

          Alternate NamesAbnormal Flag
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

          Guidance on how to interpret the contents of this table can be found here

          0. Observation
          Definition

          Details about a set of changes in the tested sample compared to a reference sequence.

          ShortVariant
          Comments

          This change can be simple/discrete (relatively short), structural (potentially very large), or complex (consisting of multiple independent co-occurring variations).

          Control0..*
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Alternate NamesVital Signs, Measurement, Results, Tests
          Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
          dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
          dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
          dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
          dom-6: A resource should have narrative for robust management (text.`div`.exists())
          obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present (dataAbsentReason.empty() or value.empty())
          obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present (value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty())
          2. Observation.id
          Definition

          The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

          ShortLogical id of this artifact
          Comments

          The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

          Control0..1
          Typeid
          Is Modifierfalse
          Summarytrue
          4. Observation.meta
          Definition

          The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

          ShortMetadata about the resource
          Control0..1
          TypeMeta
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          6. Observation.implicitRules
          Definition

          A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

          ShortA set of rules under which this content was created
          Comments

          Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

          Control0..1
          Typeuri
          Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          8. Observation.language
          Definition

          The base language in which the resource is written.

          ShortLanguage of the resource content
          Comments

          Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

          Control0..1
          BindingThe codes SHOULD be taken from CommonLanguages
          (preferred to http://hl7.org/fhir/ValueSet/languages)

          A human language.

          Additional BindingsPurpose
          AllLanguagesMax Binding
          Typecode
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          10. Observation.text
          Definition

          A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

          ShortText summary of the resource, for human interpretation
          Comments

          Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

          Control0..1
          TypeNarrative
          Is Modifierfalse
          Summaryfalse
          Alternate Namesnarrative, html, xhtml, display
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          12. Observation.contained
          Definition

          These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

          ShortContained, inline Resources
          Comments

          This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

          Control0..*
          TypeResource
          Is Modifierfalse
          Summaryfalse
          Alternate Namesinline resources, anonymous resources, contained resources
          14. Observation.extension
          Definition

          An Extension

          ShortExtension
          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on Observation.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 16. Observation.extension:BodyStructure
            Slice NameBodyStructure
            Definition

            Allows associating observations to a particular portion of the patient - a fetus, a tumor, a lesion, etc.

            ShortTarget anatomic location or structure
            Control0..1
            This element is affected by the following invariants: ele-1
            TypeExtension(Body Site) (Extension Type: Reference(BodyStructure))
            Is Modifierfalse
            Must Supportfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            18. Observation.extension:SecondaryFinding
            Slice NameSecondaryFinding
            Definition

            Allows flagging observations that should be considered secondary findings.

            ShortSecondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when [Whole Exome Sequencing (WES)](https://en.wikipedia.org/wiki/Exome_sequencing) or [Whole Genome Sequencing (WGS)](https://en.wikipedia.org/wiki/Whole_genome_sequencing) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement. For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings
            Control0..1
            This element is affected by the following invariants: ele-1
            TypeExtension(Secondary Finding) (Extension Type: CodeableConcept)
            Is Modifierfalse
            Must Supportfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            20. Observation.modifierExtension
            Definition

            May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

            ShortExtensions that cannot be ignored
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
            Summaryfalse
            Requirements

            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            22. Observation.identifier
            Definition

            A unique identifier assigned to this observation.

            ShortBusiness Identifier for observation
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Control0..*
            TypeIdentifier
            Is Modifierfalse
            Summarytrue
            Requirements

            Allows observations to be distinguished and referenced.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            24. Observation.basedOn
            Definition

            A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.

            ShortFulfills plan, proposal or order
            Control0..*
            TypeReference(CarePlan, DeviceRequest, ImmunizationRecommendation, MedicationRequest, NutritionOrder, ServiceRequest)
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Requirements

            Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon.

            Alternate NamesFulfills
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            26. Observation.partOf
            Definition

            A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.

            ShortPart of referenced event
            Comments

            To link an Observation to an Encounter use encounter. See the Notes below for guidance on referencing another Observation.

            Control0..*
            TypeReference(MedicationAdministration, MedicationDispense, MedicationStatement, Procedure, Immunization, ImagingStudy)
            Is Modifierfalse
            Summarytrue
            Alternate NamesContainer
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            28. Observation.status
            Definition

            The status of the result value.

            Shortregistered | preliminary | final | amended +
            Comments

            … This should generally be 'completed' or 'revised'.

            Control1..1
            BindingThe codes SHALL be taken from ObservationStatus
            (required to http://hl7.org/fhir/ValueSet/observation-status|4.0.1)

            Codes providing the status of an observation.

            Typecode
            Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supportfalse
            Summarytrue
            Requirements

            Need to track the status of individual results. Some results are finalized before the whole report is finalized.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            30. Observation.category
            Definition

            A code that classifies the general type of observation being made.

            ShortClassification of type of observation
            Comments

            … This should be populated with 'lab'.

            Control1..*
            BindingThe codes SHOULD be taken from ObservationCategoryCodes
            (preferred to http://hl7.org/fhir/ValueSet/observation-category)

            Codes for high level observation categories.

            TypeCodeableConcept
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Requirements

            Used for filtering what observations are retrieved and displayed.

            Pattern Value{
              "coding" : [{
                "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
                "code" : "laboratory"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            32. Observation.code
            Definition

            Where testing scenarios are intended to assess the prescence or absence of a known set of DNA variants (e.g. tumor profiling using genotyping technology), then the Genetic Variant Assessment is used in conjunction with answer list supports structured communication of these findings. Of note, 'No Call' is different from 'Absent', because 'No Call' did not result in the determination of the marker's presents or absents. This may be due to test failure or specimen specific context which renders the test ineffective.

            ShortGenetic variant assessment
            Comments

            All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

            Control1..1
            BindingFor example codes, see LOINCCodes
            (example to http://hl7.org/fhir/ValueSet/observation-codes)

            Codes identifying names of simple observations.

            TypeCodeableConcept
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Requirements

            Knowing what kind of observation is being made is essential to understanding the observation.

            Alternate NamesName
            Pattern Value{
              "coding" : [{
                "system" : "http://loinc.org",
                "code" : "69548-6"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            34. Observation.subject
            Definition

            The patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the focus element or the code itself specifies the actual focus of the observation.

            ShortWho and/or what the observation is about
            Comments

            … This must be the same patient as on the DiagnosticReport unless combining data from multiple fetuses or family members in a single report.

            Control0..1
            TypeReference(Oncology Patient)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

            Observations have no value if you don't know who or what they're about.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            36. Observation.focus
            Definition

            The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

            ShortWhat the observation is about, when it is not about the subject of record
            Comments

            Typically, an observation is made about the subject - a patient, or group of patients, location, or device - and the distinction between the subject and what is directly measured for an observation is specified in the observation code itself ( e.g., "Blood Glucose") and does not need to be represented separately using this element. Use specimen if a reference to a specimen is required. If a code is required instead of a resource use either bodysite for bodysites or the standard extension focusCode.

            Control0..*
            TypeReference(Resource)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            38. Observation.encounter
            Definition

            The healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.

            ShortHealthcare event during which this observation is made
            Comments

            This will typically be the encounter the event occurred within, but some events may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter (e.g. pre-admission laboratory tests).

            Control0..1
            TypeReference(Encounter)
            Is Modifierfalse
            Summarytrue
            Requirements

            For some observations it may be important to know the link between an observation and a particular encounter.

            Alternate NamesContext
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            40. Observation.effective[x]
            Definition

            The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

            ShortClinically relevant time/time-period for observation
            Comments

            At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.

            Control0..1
            TypedateTime
            [x] NoteSee Choice of Data Types for further information about how to use [x]
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Requirements

            Knowing when an observation was deemed true is important to its relevance as well as determining trends.

            Alternate NamesOccurrence
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            SlicingThis element introduces a set of slices on Observation.effective[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
            • type @ $this
            • 42. Observation.effective[x]:effectiveDateTime
              Slice NameeffectiveDateTime
              Definition

              The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

              ShortClinically relevant time/time-period for observation
              Comments

              At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.

              Control0..1
              TypedateTime
              [x] NoteSee Choice of Data Types for further information about how to use [x]
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supportfalse
              Summarytrue
              Requirements

              Knowing when an observation was deemed true is important to its relevance as well as determining trends.

              Alternate NamesOccurrence
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              44. Observation.issued
              Definition

              The date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.

              ShortDate/Time this version was made available
              Comments

              For Observations that don’t require review and verification, it may be the same as the lastUpdated time of the resource itself. For Observations that do require review and verification for certain updates, it might not be the same as the lastUpdated time of the resource itself due to a non-clinically significant update that doesn’t require the new version to be reviewed and verified again.

              Control0..1
              Typeinstant
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supportfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              46. Observation.performer
              Definition

              Who was responsible for asserting the observed value as "true".

              ShortWho is responsible for the observation
              Control0..1
              TypeReference(Practitioner, Organization, Patient, RelatedPerson)
              Is Modifierfalse
              Must Supportfalse
              Summarytrue
              Requirements

              May give a degree of confidence in the observation and also indicates where follow-up questions should be directed.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              48. Observation.value[x]
              Definition

              Indicates whether the indicated variation was found or not.

              ShortPresent|Absent|No call|Indeterminate
              Comments

              If not searching for specific variations and merely reporting what's found, this element should be set to "Present".

              Control1..1
              This element is affected by the following invariants: obs-7
              BindingThe codes SHALL be taken from LOINC Answer List LL1971-2
              (required to http://loinc.org/vs/LL1971-2)

              Genetic Variant Assessment

              TypeCodeableConcept
              [x] NoteSee Choice of Data Types for further information about how to use [x]
              Is Modifierfalse
              Must Supportfalse
              Summarytrue
              Requirements

              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              50. Observation.dataAbsentReason
              Definition

              Provides a reason why the expected value in the element Observation.value[x] is missing.

              ShortWhy the result is missing
              Comments

              Null or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "specimen unsatisfactory".

              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Note that an observation may only be reported if there are values to report. For example differential cell counts values may be reported only when > 0. Because of these options, use-case agreements are required to interpret general observations for null or exceptional values.

              Control0..1
              This element is affected by the following invariants: obs-6
              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

              Codes specifying why the result (Observation.value[x]) is missing.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Requirements

              For many results it is necessary to handle exceptional values in measurements.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              52. Observation.interpretation
              Definition

              A categorical assessment of an observation value. For example, high, low, normal.

              ShortHigh, low, normal, etc.
              Comments

              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

              Control0..0
              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

              Codes identifying interpretations of observations.

              TypeCodeableConcept
              Is Modifierfalse
              Must Supportfalse
              Summaryfalse
              Requirements

              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

              Alternate NamesAbnormal Flag
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              54. Observation.note
              Definition

              Comments about the observation or the results.

              ShortComments about the observation
              Comments

              May include general statements about the observation, or statements about significant, unexpected or unreliable results values, or information about its source when relevant to its interpretation.

              Control0..*
              TypeAnnotation
              Is Modifierfalse
              Summaryfalse
              Requirements

              Need to be able to provide free text additional information.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              56. Observation.bodySite
              Definition

              Indicates the site on the subject's body where the observation was made (i.e. the target site).

              ShortObserved body part
              Comments

              Only used if not implicit in code found in Observation.code. In many systems, this may be represented as a related observation instead of an inline component.

              If the use case requires BodySite to be handled as a separate resource (e.g. to identify and track separately) then use the standard extension bodySite.

              Control0..1
              BindingFor example codes, see SNOMEDCTBodyStructures
              (example to http://hl7.org/fhir/ValueSet/body-site)

              Codes describing anatomical locations. May include laterality.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              58. Observation.method
              Definition

              Indicates the method of variant analysis.

              ShortSequencing | Oligo aCGH | SNP array | BAC aCGH |Curated|+
              Comments

              Only used if not implicit in code for Observation.code.

              Control0..1
              BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL4048-6
              (extensible to http://loinc.org/vs/LL4048-6)

              Variant analysis method type

              TypeCodeableConcept
              Is Modifierfalse
              Must Supportfalse
              Summaryfalse
              Requirements

              In some cases, method can impact results and is thus used for determining whether results can be compared or determining significance of results.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              60. Observation.specimen
              Definition

              The specimen examined to determine genetic information.

              ShortSpecimen examined
              Comments

              Should only be used if not implicit in code found in Observation.code. Observations are not made on specimens themselves; they are made on a subject, but in many cases by the means of a specimen. Note that although specimens are often involved, they are not always tracked and reported explicitly. Also note that observation resources may be used in contexts that track the specimen explicitly (e.g. Diagnostic Report).

              Control0..1
              TypeReference(Specimen)
              Is Modifierfalse
              Must Supportfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              62. Observation.device
              Definition

              The device used to generate the observation data.

              Short(Measurement) Device
              Comments

              Note that this is not meant to represent a device involved in the transmission of the result, e.g., a gateway. Such devices may be documented using the Provenance resource where relevant.

              Control0..1
              TypeReference(Device, DeviceMetric)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              64. Observation.referenceRange
              Definition

              Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two referenceRange elements would be used.

              ShortProvides guide for interpretation
              Comments

              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

              Control0..*
              TypeBackboneElement
              Is Modifierfalse
              Summaryfalse
              Requirements

              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              obs-3: Must have at least a low or a high or text (low.exists() or high.exists() or text.exists())
              66. Observation.referenceRange.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..1
              Typestring
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              68. Observation.referenceRange.extension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

              ShortAdditional content defined by implementations
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Alternate Namesextensions, user content
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              70. Observation.referenceRange.modifierExtension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

              ShortExtensions that cannot be ignored even if unrecognized
              Comments

              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

              Control0..*
              TypeExtension
              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
              Summarytrue
              Requirements

              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

              Alternate Namesextensions, user content, modifiers
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              72. Observation.referenceRange.low
              Definition

              The value of the low bound of the reference range. The low bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the low bound is omitted, it is assumed to be meaningless (e.g. reference range is <=2.3).

              ShortLow Range, if relevant
              Control0..1
              This element is affected by the following invariants: obs-3
              TypeQuantity(SimpleQuantity)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              74. Observation.referenceRange.high
              Definition

              The value of the high bound of the reference range. The high bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the high bound is omitted, it is assumed to be meaningless (e.g. reference range is >= 2.3).

              ShortHigh Range, if relevant
              Control0..1
              This element is affected by the following invariants: obs-3
              TypeQuantity(SimpleQuantity)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              76. Observation.referenceRange.type
              Definition

              Codes to indicate the what part of the targeted reference population it applies to. For example, the normal or therapeutic range.

              ShortReference range qualifier
              Comments

              This SHOULD be populated if there is more than one range. If this element is not present then the normal range is assumed.

              Control0..1
              BindingThe codes SHOULD be taken from ObservationReferenceRangeMeaningCodes
              (preferred to http://hl7.org/fhir/ValueSet/referencerange-meaning)

              Code for the meaning of a reference range.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Requirements

              Need to be able to say what kind of reference range this is - normal, recommended, therapeutic, etc., - for proper interpretation.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              78. Observation.referenceRange.appliesTo
              Definition

              Codes to indicate the target population this reference range applies to. For example, a reference range may be based on the normal population or a particular sex or race. Multiple appliesTo are interpreted as an "AND" of the target populations. For example, to represent a target population of African American females, both a code of female and a code for African American would be used.

              ShortReference range population
              Comments

              This SHOULD be populated if there is more than one range. If this element is not present then the normal population is assumed.

              Control0..*
              BindingFor example codes, see ObservationReferenceRangeAppliesToCodes
              (example to http://hl7.org/fhir/ValueSet/referencerange-appliesto)

              Codes identifying the population the reference range applies to.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Requirements

              Need to be able to identify the target population for proper interpretation.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              80. Observation.referenceRange.age
              Definition

              The age at which this reference range is applicable. This is a neonatal age (e.g. number of weeks at term) if the meaning says so.

              ShortApplicable age range, if relevant
              Control0..1
              TypeRange
              Is Modifierfalse
              Summaryfalse
              Requirements

              Some analytes vary greatly over age.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              82. Observation.referenceRange.text
              Definition

              Text based reference range in an observation which may be used when a quantitative range is not appropriate for an observation. An example would be a reference value of "Negative" or a list or table of "normals".

              ShortText based reference range in an observation
              Control0..1
              Typestring
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              84. Observation.hasMember
              Definition

              This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

              ShortRelated resource that belongs to the Observation group
              Comments

              When using this element, an observation will typically have either a value or a set of related resources, although both may be present in some cases. For a discussion on the ways Observations can assembled in groups together, see Notes below. Note that a system may calculate results from QuestionnaireResponse into a final score and represent the score as an Observation.

              Control2..2
              TypeReference(Genome Entity, Annotation Reference)
              Is Modifierfalse
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              86. Observation.derivedFrom
              Definition

              The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

              ShortRelated measurements the observation is made from
              Comments

              All the reference choices that are listed in this element can represent clinical observations and other measurements that may be the source for a derived value. The most common reference will be another Observation. For a discussion on the ways Observations can assembled in groups together, see Notes below.

              Control1..2
              TypeReference(Single Nucleotide Polymorphism, Gene Fusion, Gene Expression, Variant Copy Number, 5 Prime Molecular Sequence, 3 Prime Molecular Sequence)
              Is Modifierfalse
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              SlicingThis element introduces a set of slices on Observation.derivedFrom. The slices are unordered and Open, and can be differentiated using the following discriminators:
              • pattern @ reference
              • 88. Observation.component
                Definition

                Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                ShortComponent results
                Comments

                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                Control1..*
                TypeBackboneElement
                Is Modifierfalse
                Must Supportfalse
                Summarytrue
                Requirements

                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                SlicingThis element introduces a set of slices on Observation.component. The slices are unordered and Open, and can be differentiated using the following discriminators:
                • pattern @ code
                • 90. Observation.component.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  92. Observation.component.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  94. Observation.component.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored even if unrecognized
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                  Summarytrue
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content, modifiers
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  96. Observation.component.code
                  Definition

                  Describes what was observed. Sometimes this is called the observation "code".

                  ShortType of component observation (code / type)
                  Comments

                  All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                  Control1..1
                  BindingFor example codes, see LOINCCodes
                  (example to http://hl7.org/fhir/ValueSet/observation-codes)

                  Codes identifying names of simple observations.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Summarytrue
                  Requirements

                  Knowing what kind of observation is being made is essential to understanding the observation.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  98. Observation.component.value[x]
                  Definition

                  The information determined as a result of making the observation, if the information has a simple value.

                  ShortActual component result
                  Comments

                  Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                  Control0..1
                  TypeChoice of: Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period
                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Requirements

                  An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  100. Observation.component.dataAbsentReason
                  Definition

                  Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                  ShortWhy the component result is missing
                  Comments

                  "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                  The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                  Control0..1
                  This element is affected by the following invariants: obs-6
                  BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                  (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                  Codes specifying why the result (Observation.value[x]) is missing.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Summaryfalse
                  Requirements

                  For many results it is necessary to handle exceptional values in measurements.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  102. Observation.component.interpretation
                  Definition

                  A categorical assessment of an observation value. For example, high, low, normal.

                  ShortHigh, low, normal, etc.
                  Comments

                  Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                  Control0..0
                  BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                  (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                  Codes identifying interpretations of observations.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supportfalse
                  Summaryfalse
                  Requirements

                  For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                  Alternate NamesAbnormal Flag
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  104. Observation.component.referenceRange
                  Definition

                  Guidance on how to interpret the value by comparison to a normal or recommended range.

                  ShortProvides guide for interpretation of component result
                  Comments

                  Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                  Control0..*
                  TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                  Is Modifierfalse
                  Summaryfalse
                  Requirements

                  Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  106. Observation.component:gene-studied
                  Slice Namegene-studied
                  Definition

                  HUGO Gene Nomenclature Committee (HGNC) identifier for a gene. List the gene(s) examined in full or in part by the study. If the study addresses multiple genes, these can be recorded in multiple gene studied components . The required coding will use the HGNC gene symbol as the display text and HGNC gene ID as the code.

                  ShortGene studied ID
                  Comments

                  For a discussion on the ways Observations can be assembled in groups together see Notes below.

                  Control0..1
                  TypeBackboneElement
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  108. Observation.component:gene-studied.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  110. Observation.component:gene-studied.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  112. Observation.component:gene-studied.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored even if unrecognized
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                  Summarytrue
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content, modifiers
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  114. Observation.component:gene-studied.code
                  Definition

                  Describes what was observed. Sometimes this is called the observation "code".

                  ShortType of component observation (code / type)
                  Comments

                  All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                  Control1..1
                  BindingFor example codes, see LOINCCodes
                  (example to http://hl7.org/fhir/ValueSet/observation-codes)

                  Codes identifying names of simple observations.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supportfalse
                  Summarytrue
                  Requirements

                  Knowing what kind of observation is being made is essential to understanding the observation.

                  Pattern Value{
                    "coding" : [{
                      "system" : "http://loinc.org",
                      "code" : "48018-6"
                    }]
                  }
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  116. Observation.component:gene-studied.value[x]
                  Definition

                  The information determined as a result of making the observation, if the information has a simple value.

                  ShortIf no HGNC code issued for this gene yet, NCBI gene IDs SHALL be used.
                  Comments

                  Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                  Control1..1
                  BindingUnless not suitable, these codes SHALL be taken from HGNC
                  (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgnc)

                  HGNC: Human Gene Nomenclature Committee

                  TypeCodeableConcept
                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                  Is Modifierfalse
                  Must Supportfalse
                  Summarytrue
                  Requirements

                  An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  118. Observation.component:gene-studied.value[x].id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  XML FormatIn the XML format, this property is represented as an attribute.
                  120. Observation.component:gene-studied.value[x].extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  This element is affected by the following invariants: ele-1
                  TypeExtension
                  Standards StatusNormative (from Normative)
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 122. Observation.component:gene-studied.value[x].coding
                    Definition

                    A reference to a code defined by a terminology system.

                    ShortCode defined by a terminology system
                    Comments

                    Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                    Control0..*
                    This element is affected by the following invariants: ele-1
                    TypeCoding
                    Summarytrue
                    Requirements

                    Allows for alternative encodings within a code system, and translations to other code systems.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    124. Observation.component:gene-studied.value[x].coding.id
                    Definition

                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                    ShortUnique id for inter-element referencing
                    Control0..1
                    Typestring
                    XML FormatIn the XML format, this property is represented as an attribute.
                    126. Observation.component:gene-studied.value[x].coding.extension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortAdditional content defined by implementations
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    This element is affected by the following invariants: ele-1
                    TypeExtension
                    Standards StatusNormative (from Normative)
                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 128. Observation.component:gene-studied.value[x].coding.system
                      Definition

                      The identification of the code system that defines the meaning of the symbol in the code.

                      ShortIdentity of the terminology system
                      Comments

                      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typeuri
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      Need to be unambiguous about the source of the definition of the symbol.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      130. Observation.component:gene-studied.value[x].coding.version
                      Definition

                      The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                      ShortVersion of the system - if relevant
                      Comments

                      Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                      NoteThis is a business versionId, not a resource version id (see discussion)
                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typestring
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      132. Observation.component:gene-studied.value[x].coding.code
                      Definition

                      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                      ShortSymbol in syntax defined by the system
                      Comments

                      Note that FHIR strings SHALL NOT exceed 1MB in size

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typecode
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      Need to refer to a particular code in the system.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      134. Observation.component:gene-studied.value[x].coding.display
                      Definition

                      A representation of the meaning of the code in the system, following the rules of the system.

                      ShortRepresentation defined by the system
                      Comments

                      Note that FHIR strings SHALL NOT exceed 1MB in size

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typestring
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      136. Observation.component:gene-studied.value[x].coding.userSelected
                      Definition

                      Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                      ShortIf this coding was chosen directly by the user
                      Comments

                      Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typeboolean
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      138. Observation.component:gene-studied.value[x].text
                      Definition

                      Gene symbol following the HUGO (Human Genome Organisation) nomenclature

                      ShortGene name
                      Comments

                      Very often the text is the same as a displayName of one of the codings.

                      Control0..1
                      This element is affected by the following invariants: ele-1
                      Typestring
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Requirements

                      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      140. Observation.component:gene-studied.dataAbsentReason
                      Definition

                      Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                      ShortWhy the component result is missing
                      Comments

                      "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                      The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                      Control0..1
                      This element is affected by the following invariants: obs-6
                      BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                      (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                      Codes specifying why the result (Observation.value[x]) is missing.

                      TypeCodeableConcept
                      Is Modifierfalse
                      Summaryfalse
                      Requirements

                      For many results it is necessary to handle exceptional values in measurements.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      142. Observation.component:gene-studied.interpretation
                      Definition

                      A categorical assessment of an observation value. For example, high, low, normal.

                      ShortHigh, low, normal, etc.
                      Comments

                      Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                      Control0..0
                      BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                      (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                      Codes identifying interpretations of observations.

                      TypeCodeableConcept
                      Is Modifierfalse
                      Must Supportfalse
                      Summaryfalse
                      Requirements

                      For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                      Alternate NamesAbnormal Flag
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      144. Observation.component:gene-studied.referenceRange
                      Definition

                      Guidance on how to interpret the value by comparison to a normal or recommended range.

                      ShortProvides guide for interpretation of component result
                      Comments

                      Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                      Control0..*
                      TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                      Is Modifierfalse
                      Summaryfalse
                      Requirements

                      Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      146. Observation.component:cytogenetic-location
                      Slice Namecytogenetic-location
                      Definition

                      Name of the functional region of the gene containing the genetic alteration (example: exon 3).

                      ShortGene region
                      Comments

                      For a discussion on the ways Observations can be assembled in groups together see Notes below.

                      Control0..1
                      TypeBackboneElement
                      Is Modifierfalse
                      Must Supporttrue
                      Summarytrue
                      Requirements

                      Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      148. Observation.component:cytogenetic-location.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      150. Observation.component:cytogenetic-location.extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      152. Observation.component:cytogenetic-location.modifierExtension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                      ShortExtensions that cannot be ignored even if unrecognized
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      TypeExtension
                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                      Summarytrue
                      Requirements

                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                      Alternate Namesextensions, user content, modifiers
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      154. Observation.component:cytogenetic-location.code
                      Definition

                      Describes what was observed. Sometimes this is called the observation "code".

                      ShortType of component observation (code / type)
                      Comments

                      All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                      Control1..1
                      BindingFor example codes, see LOINCCodes
                      (example to http://hl7.org/fhir/ValueSet/observation-codes)

                      Codes identifying names of simple observations.

                      TypeCodeableConcept
                      Is Modifierfalse
                      Must Supportfalse
                      Summarytrue
                      Requirements

                      Knowing what kind of observation is being made is essential to understanding the observation.

                      Pattern Value{
                        "coding" : [{
                          "system" : "http://loinc.org",
                          "code" : "48001-2"
                        }]
                      }
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      156. Observation.component:cytogenetic-location.value[x]
                      Definition

                      The information determined as a result of making the observation, if the information has a simple value.

                      ShortActual component result
                      Comments

                      Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                      Control1..1
                      Binding

                      Binding not yet defined

                      TypeCodeableConcept
                      [x] NoteSee Choice of Data Types for further information about how to use [x]
                      Is Modifierfalse
                      Must Supportfalse
                      Summarytrue
                      Requirements

                      An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      158. Observation.component:cytogenetic-location.value[x].id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      XML FormatIn the XML format, this property is represented as an attribute.
                      160. Observation.component:cytogenetic-location.value[x].extension
                      Definition

                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortAdditional content defined by implementations
                      Comments

                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                      Control0..*
                      This element is affected by the following invariants: ele-1
                      TypeExtension
                      Standards StatusNormative (from Normative)
                      Alternate Namesextensions, user content
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 162. Observation.component:cytogenetic-location.value[x].coding
                        Definition

                        A reference to a code defined by a terminology system.

                        ShortCode defined by a terminology system
                        Comments

                        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                        Control0..*
                        This element is affected by the following invariants: ele-1
                        TypeCoding
                        Summarytrue
                        Requirements

                        Allows for alternative encodings within a code system, and translations to other code systems.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        164. Observation.component:cytogenetic-location.value[x].text
                        Definition

                        Name of the functional region of the gene containing the genetic alteration (example: exon 3).

                        ShortGene region
                        Comments

                        Very often the text is the same as a displayName of one of the codings.

                        Control0..1
                        This element is affected by the following invariants: ele-1
                        Typestring
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Requirements

                        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        166. Observation.component:cytogenetic-location.dataAbsentReason
                        Definition

                        Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                        ShortWhy the component result is missing
                        Comments

                        "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                        The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                        Control0..1
                        This element is affected by the following invariants: obs-6
                        BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                        (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                        Codes specifying why the result (Observation.value[x]) is missing.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

                        For many results it is necessary to handle exceptional values in measurements.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        168. Observation.component:cytogenetic-location.interpretation
                        Definition

                        A categorical assessment of an observation value. For example, high, low, normal.

                        ShortHigh, low, normal, etc.
                        Comments

                        Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                        Control0..0
                        BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                        (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                        Codes identifying interpretations of observations.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supportfalse
                        Summaryfalse
                        Requirements

                        For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                        Alternate NamesAbnormal Flag
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        170. Observation.component:cytogenetic-location.referenceRange
                        Definition

                        Guidance on how to interpret the value by comparison to a normal or recommended range.

                        ShortProvides guide for interpretation of component result
                        Comments

                        Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                        Control0..*
                        TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

                        Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        172. Observation.component:ref-sequence-assembly
                        Slice Nameref-sequence-assembly
                        Definition

                        Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                        ShortHuman reference sequence assembly version
                        Comments

                        For a discussion on the ways Observations can be assembled in groups together see Notes below.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supportfalse
                        Summarytrue
                        Requirements

                        Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        174. Observation.component:ref-sequence-assembly.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        176. Observation.component:ref-sequence-assembly.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        178. Observation.component:ref-sequence-assembly.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        180. Observation.component:ref-sequence-assembly.code
                        Definition

                        Describes what was observed. Sometimes this is called the observation "code".

                        ShortType of component observation (code / type)
                        Comments

                        All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                        Control1..1
                        BindingFor example codes, see LOINCCodes
                        (example to http://hl7.org/fhir/ValueSet/observation-codes)

                        Codes identifying names of simple observations.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supportfalse
                        Summarytrue
                        Requirements

                        Knowing what kind of observation is being made is essential to understanding the observation.

                        Pattern Value{
                          "coding" : [{
                            "system" : "http://loinc.org",
                            "code" : "62374-4"
                          }]
                        }
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        182. Observation.component:ref-sequence-assembly.value[x]
                        Definition

                        The information determined as a result of making the observation, if the information has a simple value.

                        ShortActual component result
                        Comments

                        Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                        Control1..1
                        BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL1040-6
                        (extensible to http://loinc.org/vs/LL1040-6)

                        Human reference sequence NCBI build IDs

                        TypeCodeableConcept
                        [x] NoteSee Choice of Data Types for further information about how to use [x]
                        Is Modifierfalse
                        Must Supportfalse
                        Summarytrue
                        Requirements

                        An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        184. Observation.component:ref-sequence-assembly.dataAbsentReason
                        Definition

                        Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                        ShortWhy the component result is missing
                        Comments

                        "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                        The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                        Control0..1
                        This element is affected by the following invariants: obs-6
                        BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                        (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                        Codes specifying why the result (Observation.value[x]) is missing.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

                        For many results it is necessary to handle exceptional values in measurements.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        186. Observation.component:ref-sequence-assembly.interpretation
                        Definition

                        A categorical assessment of an observation value. For example, high, low, normal.

                        ShortHigh, low, normal, etc.
                        Comments

                        Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                        Control0..0
                        BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                        (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                        Codes identifying interpretations of observations.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supportfalse
                        Summaryfalse
                        Requirements

                        For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                        Alternate NamesAbnormal Flag
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        188. Observation.component:ref-sequence-assembly.referenceRange
                        Definition

                        Guidance on how to interpret the value by comparison to a normal or recommended range.

                        ShortProvides guide for interpretation of component result
                        Comments

                        Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                        Control0..*
                        TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

                        Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        190. Observation.component:dna-chg
                        Slice Namedna-chg
                        Definition

                        If the genetic alteration is located on a coding region of the gene, the incidence on this region is indicated according to the HGVS (Human Genome Variation Society) nomenclature. (example: c.12G>A).

                        ShortIncidence on the coding region of the gene
                        Comments

                        For a discussion on the ways Observations can be assembled in groups together see Notes below.

                        Control0..1
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Requirements

                        Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        192. Observation.component:dna-chg.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        194. Observation.component:dna-chg.extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        196. Observation.component:dna-chg.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        198. Observation.component:dna-chg.code
                        Definition

                        Describes what was observed. Sometimes this is called the observation "code".

                        ShortType of component observation (code / type)
                        Comments

                        All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                        Control1..1
                        BindingFor example codes, see LOINCCodes
                        (example to http://hl7.org/fhir/ValueSet/observation-codes)

                        Codes identifying names of simple observations.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supportfalse
                        Summarytrue
                        Requirements

                        Knowing what kind of observation is being made is essential to understanding the observation.

                        Pattern Value{
                          "coding" : [{
                            "system" : "http://loinc.org",
                            "code" : "48004-6"
                          }]
                        }
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        200. Observation.component:dna-chg.value[x]
                        Definition

                        The information determined as a result of making the observation, if the information has a simple value.

                        ShortActual component result
                        Comments

                        Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                        Control1..1
                        BindingThe codes SHALL be taken from HGVS
                        (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

                        HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

                        TypeCodeableConcept
                        [x] NoteSee Choice of Data Types for further information about how to use [x]
                        Is Modifierfalse
                        Must Supportfalse
                        Summarytrue
                        Requirements

                        An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        202. Observation.component:dna-chg.value[x].id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        XML FormatIn the XML format, this property is represented as an attribute.
                        204. Observation.component:dna-chg.value[x].extension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortAdditional content defined by implementations
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        This element is affected by the following invariants: ele-1
                        TypeExtension
                        Standards StatusNormative (from Normative)
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 206. Observation.component:dna-chg.value[x].coding
                          Definition

                          A reference to a code defined by a terminology system.

                          ShortCode defined by a terminology system
                          Comments

                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                          Control0..*
                          This element is affected by the following invariants: ele-1
                          TypeCoding
                          Summarytrue
                          Requirements

                          Allows for alternative encodings within a code system, and translations to other code systems.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          208. Observation.component:dna-chg.value[x].coding.id
                          Definition

                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                          ShortUnique id for inter-element referencing
                          Control0..1
                          Typestring
                          XML FormatIn the XML format, this property is represented as an attribute.
                          210. Observation.component:dna-chg.value[x].coding.extension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortAdditional content defined by implementations
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          This element is affected by the following invariants: ele-1
                          TypeExtension
                          Standards StatusNormative (from Normative)
                          Alternate Namesextensions, user content
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 212. Observation.component:dna-chg.value[x].coding.system
                            Definition

                            The identification of the code system that defines the meaning of the symbol in the code.

                            ShortIdentity of the terminology system
                            Comments

                            The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typeuri
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to be unambiguous about the source of the definition of the symbol.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            214. Observation.component:dna-chg.value[x].coding.version
                            Definition

                            The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                            ShortVersion of the system - if relevant
                            Comments

                            Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                            NoteThis is a business versionId, not a resource version id (see discussion)
                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typestring
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            216. Observation.component:dna-chg.value[x].coding.code
                            Definition

                            A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                            ShortSymbol in syntax defined by the system
                            Comments

                            Note that FHIR strings SHALL NOT exceed 1MB in size

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typecode
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to refer to a particular code in the system.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            218. Observation.component:dna-chg.value[x].coding.display
                            Definition

                            A representation of the meaning of the code in the system, following the rules of the system.

                            ShortRepresentation defined by the system
                            Comments

                            Note that FHIR strings SHALL NOT exceed 1MB in size

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typestring
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            220. Observation.component:dna-chg.value[x].coding.userSelected
                            Definition

                            Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                            ShortIf this coding was chosen directly by the user
                            Comments

                            Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typeboolean
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            222. Observation.component:dna-chg.value[x].text
                            Definition

                            A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                            ShortPlain text representation of the concept
                            Comments

                            Very often the text is the same as a displayName of one of the codings.

                            Control0..1
                            This element is affected by the following invariants: ele-1
                            Typestring
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summarytrue
                            Requirements

                            The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            224. Observation.component:dna-chg.dataAbsentReason
                            Definition

                            Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                            ShortWhy the component result is missing
                            Comments

                            "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                            The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                            Control0..1
                            This element is affected by the following invariants: obs-6
                            BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                            (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                            Codes specifying why the result (Observation.value[x]) is missing.

                            TypeCodeableConcept
                            Is Modifierfalse
                            Summaryfalse
                            Requirements

                            For many results it is necessary to handle exceptional values in measurements.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            226. Observation.component:dna-chg.interpretation
                            Definition

                            A categorical assessment of an observation value. For example, high, low, normal.

                            ShortHigh, low, normal, etc.
                            Comments

                            Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                            Control0..0
                            BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                            (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                            Codes identifying interpretations of observations.

                            TypeCodeableConcept
                            Is Modifierfalse
                            Must Supportfalse
                            Summaryfalse
                            Requirements

                            For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                            Alternate NamesAbnormal Flag
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            228. Observation.component:dna-chg.referenceRange
                            Definition

                            Guidance on how to interpret the value by comparison to a normal or recommended range.

                            ShortProvides guide for interpretation of component result
                            Comments

                            Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                            Control0..*
                            TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                            Is Modifierfalse
                            Summaryfalse
                            Requirements

                            Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            230. Observation.component:dna-chg-type
                            Slice Namedna-chg-type
                            Definition

                            The OSIRIS code of the type of genetic alteration.

                            ShortType of alteration
                            Comments

                            For a discussion on the ways Observations can be assembled in groups together see Notes below.

                            Control1..1
                            TypeBackboneElement
                            Is Modifierfalse
                            Must Supporttrue
                            Summarytrue
                            Requirements

                            Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            232. Observation.component:dna-chg-type.id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            Is Modifierfalse
                            XML FormatIn the XML format, this property is represented as an attribute.
                            Summaryfalse
                            234. Observation.component:dna-chg-type.extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            236. Observation.component:dna-chg-type.modifierExtension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                            ShortExtensions that cannot be ignored even if unrecognized
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                            Summarytrue
                            Requirements

                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                            Alternate Namesextensions, user content, modifiers
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            238. Observation.component:dna-chg-type.code
                            Definition

                            Describes what was observed. Sometimes this is called the observation "code".

                            ShortType of component observation (code / type)
                            Comments

                            All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                            Control1..1
                            BindingFor example codes, see LOINCCodes
                            (example to http://hl7.org/fhir/ValueSet/observation-codes)

                            Codes identifying names of simple observations.

                            TypeCodeableConcept
                            Is Modifierfalse
                            Must Supportfalse
                            Summarytrue
                            Requirements

                            Knowing what kind of observation is being made is essential to understanding the observation.

                            Pattern Value{
                              "coding" : [{
                                "system" : "http://loinc.org",
                                "code" : "48019-4"
                              }]
                            }
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            240. Observation.component:dna-chg-type.value[x]
                            Definition

                            The OSIRIS code of the type of genetic alteration.

                            ShortType of alteration
                            Comments

                            Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                            Control1..1
                            BindingThe codes SHALL be taken from Alteration Type Value Set
                            (required to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/AlterationType)
                            TypeCodeableConcept
                            [x] NoteSee Choice of Data Types for further information about how to use [x]
                            Is Modifierfalse
                            Must Supportfalse
                            Summarytrue
                            Requirements

                            An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            242. Observation.component:dna-chg-type.value[x].id
                            Definition

                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                            ShortUnique id for inter-element referencing
                            Control0..1
                            Typestring
                            XML FormatIn the XML format, this property is represented as an attribute.
                            244. Observation.component:dna-chg-type.value[x].extension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortAdditional content defined by implementations
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            This element is affected by the following invariants: ele-1
                            TypeExtension
                            Standards StatusNormative (from Normative)
                            Alternate Namesextensions, user content
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 246. Observation.component:dna-chg-type.value[x].coding
                              Definition

                              A reference to a code defined by a terminology system.

                              ShortCode defined by a terminology system
                              Comments

                              Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                              Control1..1
                              This element is affected by the following invariants: ele-1
                              TypeCoding
                              Must Supporttrue
                              Summarytrue
                              Requirements

                              Allows for alternative encodings within a code system, and translations to other code systems.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              248. Observation.component:dna-chg-type.value[x].coding.id
                              Definition

                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                              ShortUnique id for inter-element referencing
                              Control0..1
                              Typestring
                              XML FormatIn the XML format, this property is represented as an attribute.
                              250. Observation.component:dna-chg-type.value[x].coding.extension
                              Definition

                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortAdditional content defined by implementations
                              Comments

                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                              Control0..*
                              This element is affected by the following invariants: ele-1
                              TypeExtension
                              Standards StatusNormative (from Normative)
                              Alternate Namesextensions, user content
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                              SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 252. Observation.component:dna-chg-type.value[x].coding.system
                                Definition

                                The identification of the code system that defines the meaning of the symbol in the code.

                                ShortIdentity of the terminology system
                                Comments

                                The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typeuri
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to be unambiguous about the source of the definition of the symbol.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                254. Observation.component:dna-chg-type.value[x].coding.version
                                Definition

                                The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                ShortVersion of the system - if relevant
                                Comments

                                Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                NoteThis is a business versionId, not a resource version id (see discussion)
                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typestring
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                256. Observation.component:dna-chg-type.value[x].coding.code
                                Definition

                                A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                ShortSymbol in syntax defined by the system
                                Comments

                                Note that FHIR strings SHALL NOT exceed 1MB in size

                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typecode
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to refer to a particular code in the system.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                258. Observation.component:dna-chg-type.value[x].coding.display
                                Definition

                                A representation of the meaning of the code in the system, following the rules of the system.

                                ShortRepresentation defined by the system
                                Comments

                                Note that FHIR strings SHALL NOT exceed 1MB in size

                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typestring
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                260. Observation.component:dna-chg-type.value[x].coding.userSelected
                                Definition

                                Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                ShortIf this coding was chosen directly by the user
                                Comments

                                Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typeboolean
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                262. Observation.component:dna-chg-type.value[x].text
                                Definition

                                A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                ShortPlain text representation of the concept
                                Comments

                                Very often the text is the same as a displayName of one of the codings.

                                Control0..1
                                This element is affected by the following invariants: ele-1
                                Typestring
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Requirements

                                The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                264. Observation.component:dna-chg-type.dataAbsentReason
                                Definition

                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                ShortWhy the component result is missing
                                Comments

                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                Control0..1
                                This element is affected by the following invariants: obs-6
                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                Codes specifying why the result (Observation.value[x]) is missing.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                For many results it is necessary to handle exceptional values in measurements.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                266. Observation.component:dna-chg-type.interpretation
                                Definition

                                A categorical assessment of an observation value. For example, high, low, normal.

                                ShortHigh, low, normal, etc.
                                Comments

                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                Control0..0
                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                Codes identifying interpretations of observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summaryfalse
                                Requirements

                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                Alternate NamesAbnormal Flag
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                268. Observation.component:dna-chg-type.referenceRange
                                Definition

                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                ShortProvides guide for interpretation of component result
                                Comments

                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                Control0..*
                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                270. Observation.component:functional-annotation
                                Slice Namefunctional-annotation
                                Definition

                                Annotated changes to sequence features caused by this variant.

                                ShortFunctional Annotation
                                Comments

                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                Control0..*
                                TypeBackboneElement
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                272. Observation.component:functional-annotation.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                274. Observation.component:functional-annotation.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                276. Observation.component:functional-annotation.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored even if unrecognized
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content, modifiers
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                278. Observation.component:functional-annotation.code
                                Definition

                                Describes what was observed. Sometimes this is called the observation "code".

                                ShortType of component observation (code / type)
                                Comments

                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                Control1..1
                                BindingFor example codes, see LOINCCodes
                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                Codes identifying names of simple observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Knowing what kind of observation is being made is essential to understanding the observation.

                                Pattern Value{
                                  "coding" : [{
                                    "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
                                    "code" : "functional-annotation"
                                  }]
                                }
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                280. Observation.component:functional-annotation.value[x]
                                Definition

                                Changes to sequence features caused by this variant.

                                ShortConcepts in sequence ontology under SO:0001537 (see http://www.sequenceontology.org/browser/current_release/term/SO:0001537)
                                Comments

                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                Control1..1
                                BindingUnless not suitable, these codes SHALL be taken from Functional Annotation
                                (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/functional-annotation)

                                Functional Annotation (Sequence Ontology)

                                TypeCodeableConcept
                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                282. Observation.component:functional-annotation.dataAbsentReason
                                Definition

                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                ShortWhy the component result is missing
                                Comments

                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                Control0..1
                                This element is affected by the following invariants: obs-6
                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                Codes specifying why the result (Observation.value[x]) is missing.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                For many results it is necessary to handle exceptional values in measurements.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                284. Observation.component:functional-annotation.interpretation
                                Definition

                                A categorical assessment of an observation value. For example, high, low, normal.

                                ShortHigh, low, normal, etc.
                                Comments

                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                Control0..0
                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                Codes identifying interpretations of observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summaryfalse
                                Requirements

                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                Alternate NamesAbnormal Flag
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                286. Observation.component:functional-annotation.referenceRange
                                Definition

                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                ShortProvides guide for interpretation of component result
                                Comments

                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                Control0..*
                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                288. Observation.component:variation-code
                                Slice Namevariation-code
                                Definition

                                This term is used to report the unique identifier of the simple variant found in this study.

                                ShortVariation Code
                                Comments

                                If this is present, the components can be omitted but they might be included to avoid a need to look up the information in a registry. Typically only one code would be present, though multiple codings expressing the variant in different code systems are possible.

                                Control0..1
                                TypeBackboneElement
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                290. Observation.component:variation-code.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                292. Observation.component:variation-code.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                294. Observation.component:variation-code.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored even if unrecognized
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content, modifiers
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                296. Observation.component:variation-code.code
                                Definition

                                Describes what was observed. Sometimes this is called the observation "code".

                                ShortType of component observation (code / type)
                                Comments

                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                Control1..1
                                BindingFor example codes, see LOINCCodes
                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                Codes identifying names of simple observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Knowing what kind of observation is being made is essential to understanding the observation.

                                Pattern Value{
                                  "coding" : [{
                                    "system" : "http://loinc.org",
                                    "code" : "81252-9"
                                  }]
                                }
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                298. Observation.component:variation-code.value[x]
                                Definition

                                The information determined as a result of making the observation, if the information has a simple value.

                                ShortActual component result
                                Comments

                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                Control1..1
                                Binding

                                Binding not yet defined

                                TypeCodeableConcept
                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                300. Observation.component:variation-code.dataAbsentReason
                                Definition

                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                ShortWhy the component result is missing
                                Comments

                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                Control0..1
                                This element is affected by the following invariants: obs-6
                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                Codes specifying why the result (Observation.value[x]) is missing.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                For many results it is necessary to handle exceptional values in measurements.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                302. Observation.component:variation-code.interpretation
                                Definition

                                A categorical assessment of an observation value. For example, high, low, normal.

                                ShortHigh, low, normal, etc.
                                Comments

                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                Control0..0
                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                Codes identifying interpretations of observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summaryfalse
                                Requirements

                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                Alternate NamesAbnormal Flag
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                304. Observation.component:variation-code.referenceRange
                                Definition

                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                ShortProvides guide for interpretation of component result
                                Comments

                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                Control0..*
                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                306. Observation.component:dbSNP-id
                                Slice NamedbSNP-id
                                Definition

                                The unique identifier for the variant represented as a small nucleotide polymorphism (SNP). The dbSNP ID is used routinely as the base identifier in pharmacogenomics as well as arrCGH studies. For example, for the simple variant NM_014049.4(ACAD9):c.1249C>T (p.Arg417Cys), the dbSNP ID is 368949613. [http://www.ncbi.nlm.nih.gov/clinvar/variation/30880/].

                                ShortdbSNP ID
                                Comments

                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                Control0..1
                                TypeBackboneElement
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                308. Observation.component:dbSNP-id.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                310. Observation.component:dbSNP-id.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                312. Observation.component:dbSNP-id.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored even if unrecognized
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content, modifiers
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                314. Observation.component:dbSNP-id.code
                                Definition

                                Describes what was observed. Sometimes this is called the observation "code".

                                ShortType of component observation (code / type)
                                Comments

                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                Control1..1
                                BindingFor example codes, see LOINCCodes
                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                Codes identifying names of simple observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Knowing what kind of observation is being made is essential to understanding the observation.

                                Pattern Value{
                                  "coding" : [{
                                    "system" : "http://loinc.org",
                                    "code" : "81255-2"
                                  }]
                                }
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                316. Observation.component:dbSNP-id.value[x]
                                Definition

                                The information determined as a result of making the observation, if the information has a simple value.

                                ShortActual component result
                                Comments

                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                Control1..1
                                Binding

                                Binding not yet defined

                                TypeCodeableConcept
                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                318. Observation.component:dbSNP-id.dataAbsentReason
                                Definition

                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                ShortWhy the component result is missing
                                Comments

                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                Control0..1
                                This element is affected by the following invariants: obs-6
                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                Codes specifying why the result (Observation.value[x]) is missing.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                For many results it is necessary to handle exceptional values in measurements.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                320. Observation.component:dbSNP-id.interpretation
                                Definition

                                A categorical assessment of an observation value. For example, high, low, normal.

                                ShortHigh, low, normal, etc.
                                Comments

                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                Control0..0
                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                Codes identifying interpretations of observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summaryfalse
                                Requirements

                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                Alternate NamesAbnormal Flag
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                322. Observation.component:dbSNP-id.referenceRange
                                Definition

                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                ShortProvides guide for interpretation of component result
                                Comments

                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                Control0..*
                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                Is Modifierfalse
                                Summaryfalse
                                Requirements

                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                324. Observation.component:genomic-dna-chg
                                Slice Namegenomic-dna-chg
                                Definition

                                Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: g.289G>A)

                                ShortGenomic incidence
                                Comments

                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                Control0..1
                                TypeBackboneElement
                                Is Modifierfalse
                                Must Supporttrue
                                Summarytrue
                                Requirements

                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                326. Observation.component:genomic-dna-chg.id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                Is Modifierfalse
                                XML FormatIn the XML format, this property is represented as an attribute.
                                Summaryfalse
                                328. Observation.component:genomic-dna-chg.extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                330. Observation.component:genomic-dna-chg.modifierExtension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                ShortExtensions that cannot be ignored even if unrecognized
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                Requirements

                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                Alternate Namesextensions, user content, modifiers
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                332. Observation.component:genomic-dna-chg.code
                                Definition

                                Describes what was observed. Sometimes this is called the observation "code".

                                ShortType of component observation (code / type)
                                Comments

                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                Control1..1
                                BindingFor example codes, see LOINCCodes
                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                Codes identifying names of simple observations.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                Knowing what kind of observation is being made is essential to understanding the observation.

                                Pattern Value{
                                  "coding" : [{
                                    "system" : "http://loinc.org",
                                    "code" : "81290-9"
                                  }]
                                }
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                334. Observation.component:genomic-dna-chg.value[x]
                                Definition

                                The information determined as a result of making the observation, if the information has a simple value.

                                ShortActual component result
                                Comments

                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                Control1..1
                                BindingThe codes SHALL be taken from HGVS
                                (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

                                HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

                                TypeCodeableConcept
                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                Is Modifierfalse
                                Must Supportfalse
                                Summarytrue
                                Requirements

                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                336. Observation.component:genomic-dna-chg.value[x].id
                                Definition

                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                ShortUnique id for inter-element referencing
                                Control0..1
                                Typestring
                                XML FormatIn the XML format, this property is represented as an attribute.
                                338. Observation.component:genomic-dna-chg.value[x].extension
                                Definition

                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortAdditional content defined by implementations
                                Comments

                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                Control0..*
                                This element is affected by the following invariants: ele-1
                                TypeExtension
                                Standards StatusNormative (from Normative)
                                Alternate Namesextensions, user content
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 340. Observation.component:genomic-dna-chg.value[x].coding
                                  Definition

                                  A reference to a code defined by a terminology system.

                                  ShortCode defined by a terminology system
                                  Comments

                                  Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                  Control0..*
                                  This element is affected by the following invariants: ele-1
                                  TypeCoding
                                  Summarytrue
                                  Requirements

                                  Allows for alternative encodings within a code system, and translations to other code systems.

                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  342. Observation.component:genomic-dna-chg.value[x].coding.id
                                  Definition

                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  344. Observation.component:genomic-dna-chg.value[x].coding.extension
                                  Definition

                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortAdditional content defined by implementations
                                  Comments

                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                  Control0..*
                                  This element is affected by the following invariants: ele-1
                                  TypeExtension
                                  Standards StatusNormative (from Normative)
                                  Alternate Namesextensions, user content
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                  SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 346. Observation.component:genomic-dna-chg.value[x].coding.system
                                    Definition

                                    The identification of the code system that defines the meaning of the symbol in the code.

                                    ShortIdentity of the terminology system
                                    Comments

                                    The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typeuri
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Requirements

                                    Need to be unambiguous about the source of the definition of the symbol.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    348. Observation.component:genomic-dna-chg.value[x].coding.version
                                    Definition

                                    The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                    ShortVersion of the system - if relevant
                                    Comments

                                    Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                    NoteThis is a business versionId, not a resource version id (see discussion)
                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typestring
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    350. Observation.component:genomic-dna-chg.value[x].coding.code
                                    Definition

                                    A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                    ShortSymbol in syntax defined by the system
                                    Comments

                                    Note that FHIR strings SHALL NOT exceed 1MB in size

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typecode
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Requirements

                                    Need to refer to a particular code in the system.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    352. Observation.component:genomic-dna-chg.value[x].coding.display
                                    Definition

                                    A representation of the meaning of the code in the system, following the rules of the system.

                                    ShortRepresentation defined by the system
                                    Comments

                                    Note that FHIR strings SHALL NOT exceed 1MB in size

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typestring
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Requirements

                                    Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    354. Observation.component:genomic-dna-chg.value[x].coding.userSelected
                                    Definition

                                    Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                    ShortIf this coding was chosen directly by the user
                                    Comments

                                    Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typeboolean
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Requirements

                                    This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    356. Observation.component:genomic-dna-chg.value[x].text
                                    Definition

                                    A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                    ShortPlain text representation of the concept
                                    Comments

                                    Very often the text is the same as a displayName of one of the codings.

                                    Control0..1
                                    This element is affected by the following invariants: ele-1
                                    Typestring
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Requirements

                                    The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    358. Observation.component:genomic-dna-chg.dataAbsentReason
                                    Definition

                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                    ShortWhy the component result is missing
                                    Comments

                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                    Control0..1
                                    This element is affected by the following invariants: obs-6
                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                    Codes specifying why the result (Observation.value[x]) is missing.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    For many results it is necessary to handle exceptional values in measurements.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    360. Observation.component:genomic-dna-chg.interpretation
                                    Definition

                                    A categorical assessment of an observation value. For example, high, low, normal.

                                    ShortHigh, low, normal, etc.
                                    Comments

                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                    Control0..0
                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                    Codes identifying interpretations of observations.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summaryfalse
                                    Requirements

                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                    Alternate NamesAbnormal Flag
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    362. Observation.component:genomic-dna-chg.referenceRange
                                    Definition

                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                    ShortProvides guide for interpretation of component result
                                    Comments

                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                    Control0..*
                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    364. Observation.component:genomic-source-class
                                    Slice Namegenomic-source-class
                                    Definition

                                    The genomic class of the specimen being analyzed: Germline for inherited genome, somatic for cancer genome, and prenatal for fetal genome.

                                    ShortGenomic source class
                                    Comments

                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                    Control0..1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summarytrue
                                    Requirements

                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    366. Observation.component:genomic-source-class.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    368. Observation.component:genomic-source-class.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    370. Observation.component:genomic-source-class.modifierExtension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                    ShortExtensions that cannot be ignored even if unrecognized
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    Requirements

                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                    Alternate Namesextensions, user content, modifiers
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    372. Observation.component:genomic-source-class.code
                                    Definition

                                    Describes what was observed. Sometimes this is called the observation "code".

                                    ShortType of component observation (code / type)
                                    Comments

                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                    Control1..1
                                    BindingFor example codes, see LOINCCodes
                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                    Codes identifying names of simple observations.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summarytrue
                                    Requirements

                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                    Pattern Value{
                                      "coding" : [{
                                        "system" : "http://loinc.org",
                                        "code" : "48002-0"
                                      }]
                                    }
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    374. Observation.component:genomic-source-class.value[x]
                                    Definition

                                    MG_2_Genetic variant source.

                                    ShortGermline | Somatic | Fetal | Likely germline | Likely somatic |Likely fetal | Unknown genomic origin | De novo
                                    Comments

                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                    Control1..1
                                    BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL378-1
                                    (extensible to http://loinc.org/vs/LL378-1)

                                    Genomic source class values

                                    TypeCodeableConcept
                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summarytrue
                                    Requirements

                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    376. Observation.component:genomic-source-class.dataAbsentReason
                                    Definition

                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                    ShortWhy the component result is missing
                                    Comments

                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                    Control0..1
                                    This element is affected by the following invariants: obs-6
                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                    Codes specifying why the result (Observation.value[x]) is missing.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    For many results it is necessary to handle exceptional values in measurements.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    378. Observation.component:genomic-source-class.interpretation
                                    Definition

                                    A categorical assessment of an observation value. For example, high, low, normal.

                                    ShortHigh, low, normal, etc.
                                    Comments

                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                    Control0..0
                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                    Codes identifying interpretations of observations.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summaryfalse
                                    Requirements

                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                    Alternate NamesAbnormal Flag
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    380. Observation.component:genomic-source-class.referenceRange
                                    Definition

                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                    ShortProvides guide for interpretation of component result
                                    Comments

                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                    Control0..*
                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    382. Observation.component:amino-acid-chg
                                    Slice Nameamino-acid-chg
                                    Definition

                                    Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: p.Arg2322Cys)

                                    ShortIncidence on the protein
                                    Comments

                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                    Control0..1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summarytrue
                                    Requirements

                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    384. Observation.component:amino-acid-chg.id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    Is Modifierfalse
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    Summaryfalse
                                    386. Observation.component:amino-acid-chg.extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    388. Observation.component:amino-acid-chg.modifierExtension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                    ShortExtensions that cannot be ignored even if unrecognized
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    Requirements

                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                    Alternate Namesextensions, user content, modifiers
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    390. Observation.component:amino-acid-chg.code
                                    Definition

                                    Describes what was observed. Sometimes this is called the observation "code".

                                    ShortType of component observation (code / type)
                                    Comments

                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                    Control1..1
                                    BindingFor example codes, see LOINCCodes
                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                    Codes identifying names of simple observations.

                                    TypeCodeableConcept
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summarytrue
                                    Requirements

                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                    Pattern Value{
                                      "coding" : [{
                                        "system" : "http://loinc.org",
                                        "code" : "48005-3"
                                      }]
                                    }
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    392. Observation.component:amino-acid-chg.value[x]
                                    Definition

                                    The information determined as a result of making the observation, if the information has a simple value.

                                    ShortActual component result
                                    Comments

                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                    Control1..1
                                    BindingThe codes SHALL be taken from HGVS
                                    (required to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/hgvs)

                                    HGVS: Sequence Variant Nomenclature from the Human Genome Variation Society

                                    TypeCodeableConcept
                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                    Is Modifierfalse
                                    Must Supportfalse
                                    Summarytrue
                                    Requirements

                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    394. Observation.component:amino-acid-chg.value[x].id
                                    Definition

                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                    ShortUnique id for inter-element referencing
                                    Control0..1
                                    Typestring
                                    XML FormatIn the XML format, this property is represented as an attribute.
                                    396. Observation.component:amino-acid-chg.value[x].extension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortAdditional content defined by implementations
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    This element is affected by the following invariants: ele-1
                                    TypeExtension
                                    Standards StatusNormative (from Normative)
                                    Alternate Namesextensions, user content
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 398. Observation.component:amino-acid-chg.value[x].coding
                                      Definition

                                      A reference to a code defined by a terminology system.

                                      ShortCode defined by a terminology system
                                      Comments

                                      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                      Control0..*
                                      This element is affected by the following invariants: ele-1
                                      TypeCoding
                                      Summarytrue
                                      Requirements

                                      Allows for alternative encodings within a code system, and translations to other code systems.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      400. Observation.component:amino-acid-chg.value[x].coding.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      402. Observation.component:amino-acid-chg.value[x].coding.extension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                      ShortAdditional content defined by implementations
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      This element is affected by the following invariants: ele-1
                                      TypeExtension
                                      Standards StatusNormative (from Normative)
                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 404. Observation.component:amino-acid-chg.value[x].coding.system
                                        Definition

                                        The identification of the code system that defines the meaning of the symbol in the code.

                                        ShortIdentity of the terminology system
                                        Comments

                                        The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typeuri
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Requirements

                                        Need to be unambiguous about the source of the definition of the symbol.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        406. Observation.component:amino-acid-chg.value[x].coding.version
                                        Definition

                                        The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                        ShortVersion of the system - if relevant
                                        Comments

                                        Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                        NoteThis is a business versionId, not a resource version id (see discussion)
                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typestring
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        408. Observation.component:amino-acid-chg.value[x].coding.code
                                        Definition

                                        A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                        ShortSymbol in syntax defined by the system
                                        Comments

                                        Note that FHIR strings SHALL NOT exceed 1MB in size

                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typecode
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Requirements

                                        Need to refer to a particular code in the system.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        410. Observation.component:amino-acid-chg.value[x].coding.display
                                        Definition

                                        A representation of the meaning of the code in the system, following the rules of the system.

                                        ShortRepresentation defined by the system
                                        Comments

                                        Note that FHIR strings SHALL NOT exceed 1MB in size

                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typestring
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Requirements

                                        Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        412. Observation.component:amino-acid-chg.value[x].coding.userSelected
                                        Definition

                                        Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                        ShortIf this coding was chosen directly by the user
                                        Comments

                                        Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typeboolean
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Requirements

                                        This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        414. Observation.component:amino-acid-chg.value[x].text
                                        Definition

                                        A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                        ShortPlain text representation of the concept
                                        Comments

                                        Very often the text is the same as a displayName of one of the codings.

                                        Control0..1
                                        This element is affected by the following invariants: ele-1
                                        Typestring
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Requirements

                                        The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        416. Observation.component:amino-acid-chg.dataAbsentReason
                                        Definition

                                        Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                        ShortWhy the component result is missing
                                        Comments

                                        "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                        The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                        Control0..1
                                        This element is affected by the following invariants: obs-6
                                        BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                        (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                        Codes specifying why the result (Observation.value[x]) is missing.

                                        TypeCodeableConcept
                                        Is Modifierfalse
                                        Summaryfalse
                                        Requirements

                                        For many results it is necessary to handle exceptional values in measurements.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        418. Observation.component:amino-acid-chg.interpretation
                                        Definition

                                        A categorical assessment of an observation value. For example, high, low, normal.

                                        ShortHigh, low, normal, etc.
                                        Comments

                                        Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                        Control0..0
                                        BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                        (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                        Codes identifying interpretations of observations.

                                        TypeCodeableConcept
                                        Is Modifierfalse
                                        Must Supportfalse
                                        Summaryfalse
                                        Requirements

                                        For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                        Alternate NamesAbnormal Flag
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        420. Observation.component:amino-acid-chg.referenceRange
                                        Definition

                                        Guidance on how to interpret the value by comparison to a normal or recommended range.

                                        ShortProvides guide for interpretation of component result
                                        Comments

                                        Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                        Control0..*
                                        TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                        Is Modifierfalse
                                        Summaryfalse
                                        Requirements

                                        Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        422. Observation.component:amino-acid-chg-type
                                        Slice Nameamino-acid-chg-type
                                        Definition

                                        Nomenclature of changes at protein-level

                                        ShortNomenclature of changes at protein-level
                                        Comments

                                        For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                        Control0..1
                                        TypeBackboneElement
                                        Is Modifierfalse
                                        Must Supporttrue
                                        Summarytrue
                                        Requirements

                                        Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        424. Observation.component:amino-acid-chg-type.id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typestring
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        426. Observation.component:amino-acid-chg-type.extension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                        ShortAdditional content defined by implementations
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        428. Observation.component:amino-acid-chg-type.modifierExtension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                        ShortExtensions that cannot be ignored even if unrecognized
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        TypeExtension
                                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                        Summarytrue
                                        Requirements

                                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                        Alternate Namesextensions, user content, modifiers
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        430. Observation.component:amino-acid-chg-type.code
                                        Definition

                                        Describes what was observed. Sometimes this is called the observation "code".

                                        ShortType of component observation (code / type)
                                        Comments

                                        All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                        Control1..1
                                        BindingFor example codes, see LOINCCodes
                                        (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                        Codes identifying names of simple observations.

                                        TypeCodeableConcept
                                        Is Modifierfalse
                                        Must Supportfalse
                                        Summarytrue
                                        Requirements

                                        Knowing what kind of observation is being made is essential to understanding the observation.

                                        Pattern Value{
                                          "coding" : [{
                                            "system" : "http://loinc.org",
                                            "code" : "48006-1"
                                          }]
                                        }
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        432. Observation.component:amino-acid-chg-type.value[x]
                                        Definition

                                        Nomenclature of changes at protein-level

                                        ShortNomenclature of changes at protein-level
                                        Comments

                                        Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                        Control1..1
                                        BindingThe codes SHALL be taken from LOINC Answer List LL380-7
                                        (required to http://loinc.org/vs/LL380-7)

                                        Amino acid change type values

                                        TypeCodeableConcept
                                        [x] NoteSee Choice of Data Types for further information about how to use [x]
                                        Is Modifierfalse
                                        Must Supportfalse
                                        Summarytrue
                                        Requirements

                                        An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        434. Observation.component:amino-acid-chg-type.value[x].id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typestring
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        436. Observation.component:amino-acid-chg-type.value[x].extension
                                        Definition

                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                        ShortAdditional content defined by implementations
                                        Comments

                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                        Control0..*
                                        This element is affected by the following invariants: ele-1
                                        TypeExtension
                                        Standards StatusNormative (from Normative)
                                        Alternate Namesextensions, user content
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                        SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 438. Observation.component:amino-acid-chg-type.value[x].coding
                                          Definition

                                          A reference to a code defined by a terminology system.

                                          ShortCode defined by a terminology system
                                          Comments

                                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                          Control0..*
                                          This element is affected by the following invariants: ele-1
                                          TypeCoding
                                          Summarytrue
                                          Requirements

                                          Allows for alternative encodings within a code system, and translations to other code systems.

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          440. Observation.component:amino-acid-chg-type.value[x].coding.id
                                          Definition

                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                          ShortUnique id for inter-element referencing
                                          Control0..1
                                          Typestring
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          442. Observation.component:amino-acid-chg-type.value[x].coding.extension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                          ShortAdditional content defined by implementations
                                          Comments

                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                          Control0..*
                                          This element is affected by the following invariants: ele-1
                                          TypeExtension
                                          Standards StatusNormative (from Normative)
                                          Alternate Namesextensions, user content
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                          • value @ url
                                          • 444. Observation.component:amino-acid-chg-type.value[x].coding.system
                                            Definition

                                            The identification of the code system that defines the meaning of the symbol in the code.

                                            ShortIdentity of the terminology system
                                            Comments

                                            The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typeuri
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Requirements

                                            Need to be unambiguous about the source of the definition of the symbol.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            446. Observation.component:amino-acid-chg-type.value[x].coding.version
                                            Definition

                                            The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                            ShortVersion of the system - if relevant
                                            Comments

                                            Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                            NoteThis is a business versionId, not a resource version id (see discussion)
                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typestring
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            448. Observation.component:amino-acid-chg-type.value[x].coding.code
                                            Definition

                                            A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                            ShortSymbol in syntax defined by the system
                                            Comments

                                            Note that FHIR strings SHALL NOT exceed 1MB in size

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typecode
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Requirements

                                            Need to refer to a particular code in the system.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            450. Observation.component:amino-acid-chg-type.value[x].coding.display
                                            Definition

                                            A representation of the meaning of the code in the system, following the rules of the system.

                                            ShortRepresentation defined by the system
                                            Comments

                                            Note that FHIR strings SHALL NOT exceed 1MB in size

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typestring
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Requirements

                                            Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            452. Observation.component:amino-acid-chg-type.value[x].coding.userSelected
                                            Definition

                                            Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                            ShortIf this coding was chosen directly by the user
                                            Comments

                                            Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typeboolean
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Requirements

                                            This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            454. Observation.component:amino-acid-chg-type.value[x].text
                                            Definition

                                            A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                            ShortPlain text representation of the concept
                                            Comments

                                            Very often the text is the same as a displayName of one of the codings.

                                            Control0..1
                                            This element is affected by the following invariants: ele-1
                                            Typestring
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Requirements

                                            The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            456. Observation.component:amino-acid-chg-type.dataAbsentReason
                                            Definition

                                            Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                            ShortWhy the component result is missing
                                            Comments

                                            "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                            The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                            Control0..1
                                            This element is affected by the following invariants: obs-6
                                            BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                            (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                            Codes specifying why the result (Observation.value[x]) is missing.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            For many results it is necessary to handle exceptional values in measurements.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            458. Observation.component:amino-acid-chg-type.interpretation
                                            Definition

                                            A categorical assessment of an observation value. For example, high, low, normal.

                                            ShortHigh, low, normal, etc.
                                            Comments

                                            Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                            Control0..0
                                            BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                            (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                            Codes identifying interpretations of observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summaryfalse
                                            Requirements

                                            For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                            Alternate NamesAbnormal Flag
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            460. Observation.component:amino-acid-chg-type.referenceRange
                                            Definition

                                            Guidance on how to interpret the value by comparison to a normal or recommended range.

                                            ShortProvides guide for interpretation of component result
                                            Comments

                                            Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                            Control0..*
                                            TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            462. Observation.component:transcript-ref-seq
                                            Slice Nametranscript-ref-seq
                                            Definition

                                            This field carries the ID for the transcribed reference sequence, which is the part of the genomic reference sequence that is converted to messenger RNA (i.e., after the introns are removed).

                                            ShortTranscript reference sequence ID
                                            Comments

                                            Only needed if the transcript sequence or genomic reference sequence versions don't indicate the version.

                                            Control0..1
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            464. Observation.component:transcript-ref-seq.id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            466. Observation.component:transcript-ref-seq.extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            468. Observation.component:transcript-ref-seq.modifierExtension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                            ShortExtensions that cannot be ignored even if unrecognized
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            Requirements

                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                            Alternate Namesextensions, user content, modifiers
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            470. Observation.component:transcript-ref-seq.code
                                            Definition

                                            Describes what was observed. Sometimes this is called the observation "code".

                                            ShortType of component observation (code / type)
                                            Comments

                                            All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                            Control1..1
                                            BindingFor example codes, see LOINCCodes
                                            (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                            Codes identifying names of simple observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Knowing what kind of observation is being made is essential to understanding the observation.

                                            Pattern Value{
                                              "coding" : [{
                                                "system" : "http://loinc.org",
                                                "code" : "51958-7"
                                              }]
                                            }
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            472. Observation.component:transcript-ref-seq.value[x]
                                            Definition

                                            The information determined as a result of making the observation, if the information has a simple value.

                                            ShortActual component result
                                            Comments

                                            Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                            Control1..1
                                            Binding

                                            Binding not yet defined

                                            TypeCodeableConcept
                                            [x] NoteSee Choice of Data Types for further information about how to use [x]
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            474. Observation.component:transcript-ref-seq.dataAbsentReason
                                            Definition

                                            Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                            ShortWhy the component result is missing
                                            Comments

                                            "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                            The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                            Control0..1
                                            This element is affected by the following invariants: obs-6
                                            BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                            (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                            Codes specifying why the result (Observation.value[x]) is missing.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            For many results it is necessary to handle exceptional values in measurements.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            476. Observation.component:transcript-ref-seq.interpretation
                                            Definition

                                            A categorical assessment of an observation value. For example, high, low, normal.

                                            ShortHigh, low, normal, etc.
                                            Comments

                                            Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                            Control0..0
                                            BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                            (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                            Codes identifying interpretations of observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summaryfalse
                                            Requirements

                                            For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                            Alternate NamesAbnormal Flag
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            478. Observation.component:transcript-ref-seq.referenceRange
                                            Definition

                                            Guidance on how to interpret the value by comparison to a normal or recommended range.

                                            ShortProvides guide for interpretation of component result
                                            Comments

                                            Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                            Control0..*
                                            TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            480. Observation.component:genomic-ref-seq
                                            Slice Namegenomic-ref-seq
                                            Definition

                                            This field carries the ID for the genomic reference sequence. The genomic reference sequence is a contiguous stretch of chromosome DNA that spans all of the exons of the gene and includes transcribed and non transcribed stretches. For this ID use either the NCBI genomic nucleotide RefSeq IDs with their version number (see: NCBI.NLM.NIH.Gov/RefSeq) or use the LRG identifiers, without transcript (t or p) extensions -- when they become available. (See- Report sponsored by GEN2PHEN at the European Bioinformatics Institute at Hinxton UK April 24-25, 2008). The NCI RefSeq genomic IDs are distinguished by a prefix of"NG" for genes from the nuclear chromosomes and prefix of "NC" for genes from mitochondria. The LRG Identifiers have a prefix of "LRG_" Mitochondrial genes are not in the scope of LRG.

                                            ShortGenomic reference sequence ID
                                            Comments

                                            For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                            Control0..1
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            482. Observation.component:genomic-ref-seq.id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            484. Observation.component:genomic-ref-seq.extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            486. Observation.component:genomic-ref-seq.modifierExtension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                            ShortExtensions that cannot be ignored even if unrecognized
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            Requirements

                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                            Alternate Namesextensions, user content, modifiers
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            488. Observation.component:genomic-ref-seq.code
                                            Definition

                                            Describes what was observed. Sometimes this is called the observation "code".

                                            ShortType of component observation (code / type)
                                            Comments

                                            All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                            Control1..1
                                            BindingFor example codes, see LOINCCodes
                                            (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                            Codes identifying names of simple observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Knowing what kind of observation is being made is essential to understanding the observation.

                                            Pattern Value{
                                              "coding" : [{
                                                "system" : "http://loinc.org",
                                                "code" : "48013-7"
                                              }]
                                            }
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            490. Observation.component:genomic-ref-seq.value[x]
                                            Definition

                                            The information determined as a result of making the observation, if the information has a simple value.

                                            ShortActual component result
                                            Comments

                                            Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                            Control1..1
                                            Binding

                                            Binding not yet defined

                                            TypeCodeableConcept
                                            [x] NoteSee Choice of Data Types for further information about how to use [x]
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            492. Observation.component:genomic-ref-seq.dataAbsentReason
                                            Definition

                                            Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                            ShortWhy the component result is missing
                                            Comments

                                            "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                            The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                            Control0..1
                                            This element is affected by the following invariants: obs-6
                                            BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                            (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                            Codes specifying why the result (Observation.value[x]) is missing.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            For many results it is necessary to handle exceptional values in measurements.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            494. Observation.component:genomic-ref-seq.interpretation
                                            Definition

                                            A categorical assessment of an observation value. For example, high, low, normal.

                                            ShortHigh, low, normal, etc.
                                            Comments

                                            Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                            Control0..0
                                            BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                            (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                            Codes identifying interpretations of observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summaryfalse
                                            Requirements

                                            For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                            Alternate NamesAbnormal Flag
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            496. Observation.component:genomic-ref-seq.referenceRange
                                            Definition

                                            Guidance on how to interpret the value by comparison to a normal or recommended range.

                                            ShortProvides guide for interpretation of component result
                                            Comments

                                            Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                            Control0..*
                                            TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            498. Observation.component:sample-allelic-frequency
                                            Slice Namesample-allelic-frequency
                                            Definition

                                            Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                                            ShortSample Allelic Frequency
                                            Comments

                                            For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                            Control0..1
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            500. Observation.component:sample-allelic-frequency.id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            502. Observation.component:sample-allelic-frequency.extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            504. Observation.component:sample-allelic-frequency.modifierExtension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                            ShortExtensions that cannot be ignored even if unrecognized
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            Requirements

                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                            Alternate Namesextensions, user content, modifiers
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            506. Observation.component:sample-allelic-frequency.code
                                            Definition

                                            The fraction of all reads in a study sample at a given genomic locus that identify the allele (variant) in question.

                                            ShortSample Sample VAF
                                            Comments

                                            All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                            Control1..1
                                            BindingFor example codes, see LOINCCodes
                                            (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                            Codes identifying names of simple observations.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            Knowing what kind of observation is being made is essential to understanding the observation.

                                            Pattern Value{
                                              "coding" : [{
                                                "system" : "http://loinc.org",
                                                "code" : "81258-6"
                                              }]
                                            }
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            508. Observation.component:sample-allelic-frequency.value[x]
                                            Definition

                                            The information determined as a result of making the observation, if the information has a simple value.

                                            ShortActual component result
                                            Comments

                                            Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                            Control1..1
                                            TypeQuantity
                                            [x] NoteSee Choice of Data Types for further information about how to use [x]
                                            Is Modifierfalse
                                            Must Supportfalse
                                            Summarytrue
                                            Requirements

                                            An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            510. Observation.component:sample-allelic-frequency.value[x].id
                                            Definition

                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            512. Observation.component:sample-allelic-frequency.value[x].extension
                                            Definition

                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                            ShortAdditional content defined by implementations
                                            Comments

                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Alternate Namesextensions, user content
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                            SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                            • value @ url
                                            • 514. Observation.component:sample-allelic-frequency.value[x].value
                                              Definition

                                              The value of the measured amount. The value includes an implicit precision in the presentation of the value.

                                              ShortNumerical value (with implicit precision)
                                              Comments

                                              The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

                                              Control1..1
                                              Typedecimal
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Precision is handled implicitly in almost all cases of measurement.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              516. Observation.component:sample-allelic-frequency.value[x].comparator
                                              Definition

                                              How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

                                              Short< | <= | >= | > - how to understand the value
                                              Control0..1
                                              BindingThe codes SHALL be taken from QuantityComparator
                                              (required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

                                              How the Quantity should be understood and represented.

                                              Typecode
                                              Is Modifiertrue because This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summarytrue
                                              Requirements

                                              Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

                                              Meaning if MissingIf there is no comparator, then there is no modification of the value
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              518. Observation.component:sample-allelic-frequency.value[x].unit
                                              Definition

                                              A human-readable form of the unit.

                                              ShortUnit representation
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summarytrue
                                              Requirements

                                              There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              520. Observation.component:sample-allelic-frequency.value[x].system
                                              Definition

                                              The identification of the system that provides the coded form of the unit.

                                              ShortSystem that defines coded unit form
                                              Control1..1
                                              This element is affected by the following invariants: qty-3
                                              Typeuri
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Need to know the system that defines the coded form of the unit.

                                              Fixed Valuehttp://unitsofmeasure.org
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              522. Observation.component:sample-allelic-frequency.value[x].code
                                              Definition

                                              A computer processable form of the unit in some unit representation system.

                                              ShortCoded form of the unit
                                              Comments

                                              The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.

                                              Control0..1
                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summarytrue
                                              Requirements

                                              Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              524. Observation.component:sample-allelic-frequency.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              526. Observation.component:sample-allelic-frequency.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              528. Observation.component:sample-allelic-frequency.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              530. Observation.component:allelic-read-depth
                                              Slice Nameallelic-read-depth
                                              Definition

                                              Specifies the number of reads that identified the allele in question whether it consists of one or a small sequence of contiguous nucleotides. Different methods and purposes require different numbers of reads to be acceptable. Often >400, sometimes as few as 2-4.

                                              ShortAllelic read depth
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..*
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              532. Observation.component:allelic-read-depth.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              534. Observation.component:allelic-read-depth.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              536. Observation.component:allelic-read-depth.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              538. Observation.component:allelic-read-depth.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "82121-5"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              540. Observation.component:allelic-read-depth.value[x]
                                              Definition

                                              The information determined as a result of making the observation, if the information has a simple value.

                                              ShortActual component result
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              TypeQuantity
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              542. Observation.component:allelic-read-depth.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              544. Observation.component:allelic-read-depth.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              546. Observation.component:allelic-read-depth.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              548. Observation.component:allelic-state
                                              Slice Nameallelic-state
                                              Definition

                                              The level of occurrence of a single DNA Marker within a set of chromosomes. Heterozygous indicates the DNA Marker is only present in one of the two genes contained in homologous chromosomes. Homozygous indicates the DNA Marker is present in both genes contained in homologous chromosomes. Hemizygous indicates the DNA Marker exists in the only single copy of a gene in a non-homologous chromosome (The male X and Y chromosome are non-homologous). Hemiplasmic indicates that the DNA Marker is present in some but not all of the copies of mitochondrial DNA. Homoplasmic indicates that the DNA Maker is present in all of the copies of mitochondrial DNA.

                                              ShortAllelic state
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              550. Observation.component:allelic-state.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              552. Observation.component:allelic-state.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              554. Observation.component:allelic-state.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              556. Observation.component:allelic-state.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "53034-5"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              558. Observation.component:allelic-state.value[x]
                                              Definition

                                              The relationship between the alleles found at the same locus on different chromosomes.

                                              ShortHeteroplasmic | Homoplasmic | Homozygous | Heterozygous | Hemizygous
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL381-5
                                              (extensible to http://loinc.org/vs/LL381-5)

                                              Allelic state type values

                                              TypeCodeableConcept
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              560. Observation.component:allelic-state.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              562. Observation.component:allelic-state.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              564. Observation.component:allelic-state.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              566. Observation.component:copy-number
                                              Slice Namecopy-number
                                              Definition

                                              The copy number of the large variant. In HGVS, this is the numeric value following the “X”. It is a unit-less value. Note that a copy number of 1 implies a deletion. The copy number can usually be inferred from the HGVS or ISCN fields.

                                              ShortGenomic structural variant copy number
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              568. Observation.component:copy-number.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              570. Observation.component:copy-number.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              572. Observation.component:copy-number.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              574. Observation.component:copy-number.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "82155-3"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              576. Observation.component:copy-number.value[x]
                                              Definition

                                              A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.

                                              ShortA measured or measurable amount
                                              Comments

                                              The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

                                              Control1..1
                                              TypeQuantity(Count)
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantscnt-3: There SHALL be a code with a value of "1" if there is a value. If system is present, it SHALL be UCUM. If present, the value SHALL be a whole number. ((code.exists() or value.empty()) and (system.empty() or system = %ucum) and (code.empty() or code = '1') and (value.empty() or value.hasValue().not() or value.toString().contains('.').not()))
                                              ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
                                              578. Observation.component:copy-number.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              580. Observation.component:copy-number.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              582. Observation.component:copy-number.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              584. Observation.component:ref-allele
                                              Slice Nameref-allele
                                              Definition

                                              Reference values ("normal") examined within the Reference Sequence.

                                              ShortGenomic ref allele
                                              Comments

                                              This is used in a genotyping test to define the reference and variable nucleotide strings. That is if the sequence variation is an insertion, then Reference Nucleotide will be blank and Variable Nucleotide will contain the inserted nucleotides. In contrast, if the sequence variation is a deletion, then the Reference Nucleotide will contain the deleted nucliotieds, and the Variable Nucleotide will be blank.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              586. Observation.component:ref-allele.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              588. Observation.component:ref-allele.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              590. Observation.component:ref-allele.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              592. Observation.component:ref-allele.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "69547-8"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              594. Observation.component:ref-allele.value[x]
                                              Definition

                                              The information determined as a result of making the observation, if the information has a simple value.

                                              ShortActual component result
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              Typestring
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              596. Observation.component:ref-allele.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              598. Observation.component:ref-allele.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              600. Observation.component:ref-allele.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              602. Observation.component:alt-allele
                                              Slice Namealt-allele
                                              Definition

                                              The genomic alternate allele is the contiguous segment of DNA in the test sample that differs from the reference allele at the same location and thus defines a variant.

                                              ShortGenomic alt allele
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              604. Observation.component:alt-allele.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              606. Observation.component:alt-allele.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              608. Observation.component:alt-allele.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              610. Observation.component:alt-allele.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "69551-0"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              612. Observation.component:alt-allele.value[x]
                                              Definition

                                              The information determined as a result of making the observation, if the information has a simple value.

                                              ShortActual component result
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              Typestring
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              614. Observation.component:alt-allele.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              616. Observation.component:alt-allele.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              618. Observation.component:alt-allele.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              620. Observation.component:coordinate-system
                                              Slice Namecoordinate-system
                                              Definition

                                              Base number of coordinate system either 0-based, with inclusive start and exclusive end (called interval), or 1-based, with inclusive start and end. However, two versions of 1-based are in common use.These systems are HGVS 1-based (called variant method) and VCF 1-based (called alignment method). In general, HGVS recommends right-justification and VCF recommends left-justification. However, these systems further address questions such as wheather or not to place an insertion before or after the nucleotide, and, if always placed before the nucleotide, how to handle insertion after the end of the sequence. Additionally, the systems deal with handling boundary effects of numbers between features. For more details see the HGVS and VCF guides.

                                              ShortCoordinate System
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              622. Observation.component:coordinate-system.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              624. Observation.component:coordinate-system.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              626. Observation.component:coordinate-system.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              628. Observation.component:coordinate-system.code
                                              Definition

                                              This captures the base numbering used to calculate base positions in the reported sequence information.

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://loinc.org",
                                                  "code" : "92822-6"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              630. Observation.component:coordinate-system.value[x]
                                              Definition

                                              The information determined as a result of making the observation, if the information has a simple value.

                                              Short0-based interval | 0-based character | 1-based character
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              BindingThe codes SHOULD be taken from LOINC Answer List LL5323-2
                                              (preferred to http://loinc.org/vs/LL5323-2)

                                              Base coordinate systems start and end measurements for variants

                                              TypeCodeableConcept
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              632. Observation.component:coordinate-system.dataAbsentReason
                                              Definition

                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                              ShortWhy the component result is missing
                                              Comments

                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                              Control0..1
                                              This element is affected by the following invariants: obs-6
                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                              Codes specifying why the result (Observation.value[x]) is missing.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              For many results it is necessary to handle exceptional values in measurements.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              634. Observation.component:coordinate-system.interpretation
                                              Definition

                                              A categorical assessment of an observation value. For example, high, low, normal.

                                              ShortHigh, low, normal, etc.
                                              Comments

                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                              Control0..0
                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                              Codes identifying interpretations of observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summaryfalse
                                              Requirements

                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                              Alternate NamesAbnormal Flag
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              636. Observation.component:coordinate-system.referenceRange
                                              Definition

                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                              ShortProvides guide for interpretation of component result
                                              Comments

                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                              Control0..*
                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                              Is Modifierfalse
                                              Summaryfalse
                                              Requirements

                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              638. Observation.component:exact-start-end
                                              Slice Nameexact-start-end
                                              Definition

                                              This location is the first genomic position in the reference allele that contains a change from the reference allele. For example, for the simple variant NM_014049.4(ACAD9):c.1249C>T (p.Arg417Cys), the location is Chr3: 128906220 on Assembly GRCh38.

                                              ShortExact start-end
                                              Comments

                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                              Control0..1
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              640. Observation.component:exact-start-end.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              642. Observation.component:exact-start-end.extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              644. Observation.component:exact-start-end.modifierExtension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                              ShortExtensions that cannot be ignored even if unrecognized
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              Requirements

                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                              Alternate Namesextensions, user content, modifiers
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              646. Observation.component:exact-start-end.code
                                              Definition

                                              Describes what was observed. Sometimes this is called the observation "code".

                                              ShortType of component observation (code / type)
                                              Comments

                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                              Control1..1
                                              BindingFor example codes, see LOINCCodes
                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                              Codes identifying names of simple observations.

                                              TypeCodeableConcept
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                              Pattern Value{
                                                "coding" : [{
                                                  "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
                                                  "code" : "exact-start-end"
                                                }]
                                              }
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              648. Observation.component:exact-start-end.value[x]
                                              Definition

                                              The information determined as a result of making the observation, if the information has a simple value.

                                              ShortActual component result
                                              Comments

                                              Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                              Control1..1
                                              TypeRange
                                              [x] NoteSee Choice of Data Types for further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supportfalse
                                              Summarytrue
                                              Requirements

                                              An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              650. Observation.component:exact-start-end.value[x].id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              652. Observation.component:exact-start-end.value[x].extension
                                              Definition

                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                              ShortAdditional content defined by implementations
                                              Comments

                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Alternate Namesextensions, user content
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                              SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                              • value @ url
                                              • 654. Observation.component:exact-start-end.value[x].low
                                                Definition

                                                The low limit. The boundary is inclusive.

                                                ShortExact Start
                                                Comments

                                                If the low element is missing, the low boundary is not known.

                                                Control1..1
                                                TypeQuantity(SimpleQuantity)
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                656. Observation.component:exact-start-end.value[x].high
                                                Definition

                                                Optional since many representations (VCF, SPDI) only provide a single position.

                                                ShortExact End
                                                Comments

                                                If the high element is missing, the high boundary is not known.

                                                Control0..1
                                                TypeQuantity(SimpleQuantity)
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                658. Observation.component:exact-start-end.dataAbsentReason
                                                Definition

                                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                ShortWhy the component result is missing
                                                Comments

                                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                Control0..1
                                                This element is affected by the following invariants: obs-6
                                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                Codes specifying why the result (Observation.value[x]) is missing.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Summaryfalse
                                                Requirements

                                                For many results it is necessary to handle exceptional values in measurements.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                660. Observation.component:exact-start-end.interpretation
                                                Definition

                                                A categorical assessment of an observation value. For example, high, low, normal.

                                                ShortHigh, low, normal, etc.
                                                Comments

                                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                Control0..0
                                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                Codes identifying interpretations of observations.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summaryfalse
                                                Requirements

                                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                Alternate NamesAbnormal Flag
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                662. Observation.component:exact-start-end.referenceRange
                                                Definition

                                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                ShortProvides guide for interpretation of component result
                                                Comments

                                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                Control0..*
                                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                Is Modifierfalse
                                                Summaryfalse
                                                Requirements

                                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                664. Observation.component:variant-length
                                                Slice Namevariant-length
                                                Definition

                                                Length of the structural variant, which information may be ascertained in some but not all types of structural variants.

                                                ShortStructural variant length
                                                Comments

                                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                Control0..1
                                                TypeBackboneElement
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Requirements

                                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                666. Observation.component:variant-length.id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typestring
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                668. Observation.component:variant-length.extension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                ShortAdditional content defined by implementations
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                670. Observation.component:variant-length.modifierExtension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                ShortExtensions that cannot be ignored even if unrecognized
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                Summarytrue
                                                Requirements

                                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                Alternate Namesextensions, user content, modifiers
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                672. Observation.component:variant-length.code
                                                Definition

                                                Describes what was observed. Sometimes this is called the observation "code".

                                                ShortType of component observation (code / type)
                                                Comments

                                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                Control1..1
                                                BindingFor example codes, see LOINCCodes
                                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                Codes identifying names of simple observations.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Requirements

                                                Knowing what kind of observation is being made is essential to understanding the observation.

                                                Pattern Value{
                                                  "coding" : [{
                                                    "system" : "http://loinc.org",
                                                    "code" : "81300-6"
                                                  }]
                                                }
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                674. Observation.component:variant-length.value[x]
                                                Definition

                                                A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.

                                                ShortA measured or measurable amount
                                                Comments

                                                The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

                                                Control1..1
                                                TypeQuantity(Count)
                                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Requirements

                                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                Invariantscnt-3: There SHALL be a code with a value of "1" if there is a value. If system is present, it SHALL be UCUM. If present, the value SHALL be a whole number. ((code.exists() or value.empty()) and (system.empty() or system = %ucum) and (code.empty() or code = '1') and (value.empty() or value.hasValue().not() or value.toString().contains('.').not()))
                                                ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
                                                676. Observation.component:variant-length.dataAbsentReason
                                                Definition

                                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                ShortWhy the component result is missing
                                                Comments

                                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                Control0..1
                                                This element is affected by the following invariants: obs-6
                                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                Codes specifying why the result (Observation.value[x]) is missing.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Summaryfalse
                                                Requirements

                                                For many results it is necessary to handle exceptional values in measurements.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                678. Observation.component:variant-length.interpretation
                                                Definition

                                                A categorical assessment of an observation value. For example, high, low, normal.

                                                ShortHigh, low, normal, etc.
                                                Comments

                                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                Control0..0
                                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                Codes identifying interpretations of observations.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summaryfalse
                                                Requirements

                                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                Alternate NamesAbnormal Flag
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                680. Observation.component:variant-length.referenceRange
                                                Definition

                                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                ShortProvides guide for interpretation of component result
                                                Comments

                                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                Control0..*
                                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                Is Modifierfalse
                                                Summaryfalse
                                                Requirements

                                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                682. Observation.component:outer-start-end
                                                Slice Nameouter-start-end
                                                Definition

                                                The genomic coordinates of the widest genomic range in which the variant might reside.

                                                ShortVariant outer start and end
                                                Comments

                                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                Control0..1
                                                TypeBackboneElement
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Requirements

                                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                684. Observation.component:outer-start-end.id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typestring
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                686. Observation.component:outer-start-end.extension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                ShortAdditional content defined by implementations
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                688. Observation.component:outer-start-end.modifierExtension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                ShortExtensions that cannot be ignored even if unrecognized
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                Summarytrue
                                                Requirements

                                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                Alternate Namesextensions, user content, modifiers
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                690. Observation.component:outer-start-end.code
                                                Definition

                                                Describes what was observed. Sometimes this is called the observation "code".

                                                ShortType of component observation (code / type)
                                                Comments

                                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                Control1..1
                                                BindingFor example codes, see LOINCCodes
                                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                Codes identifying names of simple observations.

                                                TypeCodeableConcept
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Requirements

                                                Knowing what kind of observation is being made is essential to understanding the observation.

                                                Pattern Value{
                                                  "coding" : [{
                                                    "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
                                                    "code" : "outer-start-end"
                                                  }]
                                                }
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                692. Observation.component:outer-start-end.value[x]
                                                Definition

                                                The information determined as a result of making the observation, if the information has a simple value.

                                                ShortActual component result
                                                Comments

                                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                Control1..1
                                                TypeRange
                                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                Is Modifierfalse
                                                Must Supportfalse
                                                Summarytrue
                                                Requirements

                                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                694. Observation.component:outer-start-end.value[x].id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typestring
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                696. Observation.component:outer-start-end.value[x].extension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                ShortAdditional content defined by implementations
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                • value @ url
                                                • 698. Observation.component:outer-start-end.value[x].low
                                                  Definition

                                                  The low limit. The boundary is inclusive.

                                                  ShortLow limit
                                                  Comments

                                                  If the low element is missing, the low boundary is not known.

                                                  Control1..1
                                                  TypeQuantity(SimpleQuantity)
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summarytrue
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  700. Observation.component:outer-start-end.value[x].high
                                                  Definition

                                                  The high limit. The boundary is inclusive.

                                                  ShortHigh limit
                                                  Comments

                                                  If the high element is missing, the high boundary is not known.

                                                  Control1..1
                                                  TypeQuantity(SimpleQuantity)
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summarytrue
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  702. Observation.component:outer-start-end.dataAbsentReason
                                                  Definition

                                                  Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                  ShortWhy the component result is missing
                                                  Comments

                                                  "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                  The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                  Control0..1
                                                  This element is affected by the following invariants: obs-6
                                                  BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                  (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                  Codes specifying why the result (Observation.value[x]) is missing.

                                                  TypeCodeableConcept
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Requirements

                                                  For many results it is necessary to handle exceptional values in measurements.

                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  704. Observation.component:outer-start-end.interpretation
                                                  Definition

                                                  A categorical assessment of an observation value. For example, high, low, normal.

                                                  ShortHigh, low, normal, etc.
                                                  Comments

                                                  Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                  Control0..0
                                                  BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                  (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                  Codes identifying interpretations of observations.

                                                  TypeCodeableConcept
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summaryfalse
                                                  Requirements

                                                  For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                  Alternate NamesAbnormal Flag
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  706. Observation.component:outer-start-end.referenceRange
                                                  Definition

                                                  Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                  ShortProvides guide for interpretation of component result
                                                  Comments

                                                  Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                  Control0..*
                                                  TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Requirements

                                                  Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  708. Observation.component:inner-start-end
                                                  Slice Nameinner-start-end
                                                  Definition

                                                  The genomic coordinates of the narrowest genomic range in which the structural variant might reside.

                                                  ShortVariant inner start and end
                                                  Comments

                                                  For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                  Control0..1
                                                  TypeBackboneElement
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summarytrue
                                                  Requirements

                                                  Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  710. Observation.component:inner-start-end.id
                                                  Definition

                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                  ShortUnique id for inter-element referencing
                                                  Control0..1
                                                  Typestring
                                                  Is Modifierfalse
                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                  Summaryfalse
                                                  712. Observation.component:inner-start-end.extension
                                                  Definition

                                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                  ShortAdditional content defined by implementations
                                                  Comments

                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Alternate Namesextensions, user content
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  714. Observation.component:inner-start-end.modifierExtension
                                                  Definition

                                                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                  ShortExtensions that cannot be ignored even if unrecognized
                                                  Comments

                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                  Summarytrue
                                                  Requirements

                                                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                  Alternate Namesextensions, user content, modifiers
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  716. Observation.component:inner-start-end.code
                                                  Definition

                                                  Describes what was observed. Sometimes this is called the observation "code".

                                                  ShortType of component observation (code / type)
                                                  Comments

                                                  All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                  Control1..1
                                                  BindingFor example codes, see LOINCCodes
                                                  (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                  Codes identifying names of simple observations.

                                                  TypeCodeableConcept
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summarytrue
                                                  Requirements

                                                  Knowing what kind of observation is being made is essential to understanding the observation.

                                                  Pattern Value{
                                                    "coding" : [{
                                                      "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
                                                      "code" : "inner-start-end"
                                                    }]
                                                  }
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  718. Observation.component:inner-start-end.value[x]
                                                  Definition

                                                  The information determined as a result of making the observation, if the information has a simple value.

                                                  ShortActual component result
                                                  Comments

                                                  Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                  Control1..1
                                                  TypeRange
                                                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                  Is Modifierfalse
                                                  Must Supportfalse
                                                  Summarytrue
                                                  Requirements

                                                  An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  720. Observation.component:inner-start-end.value[x].id
                                                  Definition

                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                  ShortUnique id for inter-element referencing
                                                  Control0..1
                                                  Typestring
                                                  Is Modifierfalse
                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                  Summaryfalse
                                                  722. Observation.component:inner-start-end.value[x].extension
                                                  Definition

                                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                  ShortAdditional content defined by implementations
                                                  Comments

                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Alternate Namesextensions, user content
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                  • value @ url
                                                  • 724. Observation.component:inner-start-end.value[x].low
                                                    Definition

                                                    The low limit. The boundary is inclusive.

                                                    ShortLow limit
                                                    Comments

                                                    If the low element is missing, the low boundary is not known.

                                                    Control1..1
                                                    TypeQuantity(SimpleQuantity)
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    726. Observation.component:inner-start-end.value[x].high
                                                    Definition

                                                    The high limit. The boundary is inclusive.

                                                    ShortHigh limit
                                                    Comments

                                                    If the high element is missing, the high boundary is not known.

                                                    Control1..1
                                                    TypeQuantity(SimpleQuantity)
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    728. Observation.component:inner-start-end.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    730. Observation.component:inner-start-end.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    732. Observation.component:inner-start-end.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    734. Observation.component:chromosome-copy-number-change-type
                                                    Slice Namechromosome-copy-number-change-type
                                                    Definition

                                                    The type of the chromosome copy number change.

                                                    ShortChromosome copy number change type
                                                    Comments

                                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    736. Observation.component:chromosome-copy-number-change-type.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    738. Observation.component:chromosome-copy-number-change-type.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    740. Observation.component:chromosome-copy-number-change-type.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    742. Observation.component:chromosome-copy-number-change-type.code
                                                    Definition

                                                    Describes what was observed. Sometimes this is called the observation "code".

                                                    ShortType of component observation (code / type)
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://loinc.org",
                                                        "code" : "62378-5"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    744. Observation.component:chromosome-copy-number-change-type.value[x]
                                                    Definition

                                                    The information determined as a result of making the observation, if the information has a simple value.

                                                    ShortCopy number gain | Copy number loss
                                                    Comments

                                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                    Control1..1
                                                    BindingThe codes SHALL be taken from LOINC Answer List LL1041-4
                                                    (required to http://loinc.org/vs/LL1041-4)

                                                    Copy Number Change Types

                                                    TypeCodeableConcept
                                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    746. Observation.component:chromosome-copy-number-change-type.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    748. Observation.component:chromosome-copy-number-change-type.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    750. Observation.component:chromosome-copy-number-change-type.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    752. Observation.component:arrCGH-ratio
                                                    Slice NamearrCGH-ratio
                                                    Definition

                                                    todo.

                                                    ShortStructural variant reported arrCGH [Ratio]
                                                    Comments

                                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    754. Observation.component:arrCGH-ratio.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    756. Observation.component:arrCGH-ratio.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    758. Observation.component:arrCGH-ratio.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    760. Observation.component:arrCGH-ratio.code
                                                    Definition

                                                    Describes what was observed. Sometimes this is called the observation "code".

                                                    ShortType of component observation (code / type)
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://loinc.org",
                                                        "code" : "81299-0"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    762. Observation.component:arrCGH-ratio.value[x]
                                                    Definition

                                                    The comparator is not used on a SimpleQuantity

                                                    ShortA fixed quantity (no comparator)
                                                    Comments

                                                    The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

                                                    Control1..1
                                                    This element is affected by the following invariants: ele-1
                                                    TypeQuantity(SimpleQuantity)
                                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Requirements

                                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
                                                    sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
                                                    764. Observation.component:arrCGH-ratio.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    766. Observation.component:arrCGH-ratio.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    768. Observation.component:arrCGH-ratio.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    770. Observation.component:complex-var-type
                                                    Slice Namecomplex-var-type
                                                    Definition

                                                    The type of complex variant, for example, compound heterozygous or haplotype.

                                                    ShortComplex variant type
                                                    Comments

                                                    When sending a grouping of non-contiguous variants that are meant to be interpreted together but do not signify a named haplotype, one can send the type of complex variant here (determined by where the individual changes are in relation to each other), and use Observation.hasMember to reference the individual variants, which would then be described as normal.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    772. Observation.component:complex-var-type.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    774. Observation.component:complex-var-type.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    776. Observation.component:complex-var-type.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    778. Observation.component:complex-var-type.code
                                                    Definition

                                                    Describes what was observed. Sometimes this is called the observation "code".

                                                    ShortType of component observation (code / type)
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://loinc.org",
                                                        "code" : "81263-6"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    780. Observation.component:complex-var-type.value[x]
                                                    Definition

                                                    The information determined as a result of making the observation, if the information has a simple value.

                                                    ShortCompound heterozygous | Double heterozygous | Haplotype | Hemizygous
                                                    Comments

                                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                    Control1..1
                                                    BindingThe codes SHALL be taken from LOINC Answer List LL3999-1
                                                    (required to http://loinc.org/vs/LL3999-1)

                                                    Complex variant type

                                                    TypeCodeableConcept
                                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    782. Observation.component:complex-var-type.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    784. Observation.component:complex-var-type.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    786. Observation.component:complex-var-type.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    788. Observation.component:cytogenomic-nomenclature
                                                    Slice Namecytogenomic-nomenclature
                                                    Definition

                                                    Fully describes a variant with a single code. Typically a large variant such as a mosaic, abnormal chromosome numbers, etc.

                                                    ShortCytogenomic Nomenclature
                                                    Comments

                                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    790. Observation.component:cytogenomic-nomenclature.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    792. Observation.component:cytogenomic-nomenclature.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    794. Observation.component:cytogenomic-nomenclature.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    796. Observation.component:cytogenomic-nomenclature.code
                                                    Definition

                                                    ISCN is a syntax for describing cytogenetic findings, from classical karyotypes to details that can be observed with copy number methodologies. Using ISCN nomenclature is highly recommended for reporting structural variants.

                                                    ShortVariant ISCN
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://loinc.org",
                                                        "code" : "81291-7"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    798. Observation.component:cytogenomic-nomenclature.value[x]
                                                    Definition

                                                    The information determined as a result of making the observation, if the information has a simple value.

                                                    ShortActual component result
                                                    Comments

                                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                    Control1..1
                                                    Binding

                                                    Binding not yet defined

                                                    TypeCodeableConcept
                                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    800. Observation.component:cytogenomic-nomenclature.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    802. Observation.component:cytogenomic-nomenclature.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    804. Observation.component:cytogenomic-nomenclature.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    806. Observation.component:variant-inheritance
                                                    Slice Namevariant-inheritance
                                                    Definition

                                                    Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                                                    ShortVariant Inheritance
                                                    Comments

                                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    808. Observation.component:variant-inheritance.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    810. Observation.component:variant-inheritance.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    812. Observation.component:variant-inheritance.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    814. Observation.component:variant-inheritance.code
                                                    Definition

                                                    Describes what was observed. Sometimes this is called the observation "code".

                                                    ShortType of component observation (code / type)
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes",
                                                        "code" : "variant-inheritance"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    816. Observation.component:variant-inheritance.value[x]
                                                    Definition

                                                    The information determined as a result of making the observation, if the information has a simple value.

                                                    ShortActual component result
                                                    Comments

                                                    Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                    Control1..1
                                                    BindingUnless not suitable, these codes SHALL be taken from Variant Inheritance
                                                    (extensible to http://hl7.org/fhir/uv/genomics-reporting/ValueSet/variant-inheritance)

                                                    Variant Inheritance (Sequence Ontology)

                                                    TypeCodeableConcept
                                                    [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summarytrue
                                                    Requirements

                                                    An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    818. Observation.component:variant-inheritance.dataAbsentReason
                                                    Definition

                                                    Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                    ShortWhy the component result is missing
                                                    Comments

                                                    "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                    The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                    Control0..1
                                                    This element is affected by the following invariants: obs-6
                                                    BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                    (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                    Codes specifying why the result (Observation.value[x]) is missing.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For many results it is necessary to handle exceptional values in measurements.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    820. Observation.component:variant-inheritance.interpretation
                                                    Definition

                                                    A categorical assessment of an observation value. For example, high, low, normal.

                                                    ShortHigh, low, normal, etc.
                                                    Comments

                                                    Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                    Control0..0
                                                    BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                    (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                    Codes identifying interpretations of observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Must Supportfalse
                                                    Summaryfalse
                                                    Requirements

                                                    For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                    Alternate NamesAbnormal Flag
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    822. Observation.component:variant-inheritance.referenceRange
                                                    Definition

                                                    Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                    ShortProvides guide for interpretation of component result
                                                    Comments

                                                    Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                    Control0..*
                                                    TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Requirements

                                                    Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    824. Observation.component:mutation-prediction-software
                                                    Slice Namemutation-prediction-software
                                                    Definition

                                                    Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                                                    ShortComponent results
                                                    Comments

                                                    For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                    Control0..1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Must Supporttrue
                                                    Summarytrue
                                                    Requirements

                                                    Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    826. Observation.component:mutation-prediction-software.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    828. Observation.component:mutation-prediction-software.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    830. Observation.component:mutation-prediction-software.modifierExtension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    Requirements

                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                    Alternate Namesextensions, user content, modifiers
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    832. Observation.component:mutation-prediction-software.code
                                                    Definition

                                                    Describes what was observed. Sometimes this is called the observation "code".

                                                    ShortType of component observation (code / type)
                                                    Comments

                                                    All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                    Control1..1
                                                    BindingFor example codes, see LOINCCodes
                                                    (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                    Codes identifying names of simple observations.

                                                    TypeCodeableConcept
                                                    Is Modifierfalse
                                                    Summarytrue
                                                    Requirements

                                                    Knowing what kind of observation is being made is essential to understanding the observation.

                                                    Pattern Value{
                                                      "coding" : [{
                                                        "system" : "http://loinc.org",
                                                        "code" : "LP91038-7"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    834. Observation.component:mutation-prediction-software.code.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    836. Observation.component:mutation-prediction-software.code.extension
                                                    Definition

                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                    ShortAdditional content defined by implementations
                                                    Comments

                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                    Control0..*
                                                    This element is affected by the following invariants: ele-1
                                                    TypeExtension
                                                    Standards StatusNormative (from Normative)
                                                    Alternate Namesextensions, user content
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    SlicingThis element introduces a set of slices on Observation.component.code.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                    • value @ url
                                                    • 838. Observation.component:mutation-prediction-software.code.coding
                                                      Definition

                                                      A reference to a code defined by a terminology system.

                                                      ShortCode defined by a terminology system
                                                      Comments

                                                      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                      Control0..*
                                                      This element is affected by the following invariants: ele-1
                                                      TypeCoding
                                                      Summarytrue
                                                      Requirements

                                                      Allows for alternative encodings within a code system, and translations to other code systems.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      840. Observation.component:mutation-prediction-software.code.text
                                                      Definition

                                                      A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                      ShortPlain text representation of the concept
                                                      Comments

                                                      Very often the text is the same as a displayName of one of the codings.

                                                      Control0..1
                                                      This element is affected by the following invariants: ele-1
                                                      Typestring
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Requirements

                                                      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                      Pattern ValuePrediction software
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      842. Observation.component:mutation-prediction-software.value[x]
                                                      Definition

                                                      The name of the software used to predict the impact of the alteration on the protein.

                                                      ShortPrediction software
                                                      Comments

                                                      Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                      Control0..1
                                                      BindingFor example codes, see Mutation prediction Value Set
                                                      (example to https://build.fhir.org/ig/arkhn/arkhn-ig-osiris/ValueSet/MutationPrediction)
                                                      TypeCodeableConcept
                                                      [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                      Is Modifierfalse
                                                      Summarytrue
                                                      Requirements

                                                      An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      844. Observation.component:mutation-prediction-software.value[x].id
                                                      Definition

                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                      ShortUnique id for inter-element referencing
                                                      Control0..1
                                                      Typestring
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      846. Observation.component:mutation-prediction-software.value[x].extension
                                                      Definition

                                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                      ShortAdditional content defined by implementations
                                                      Comments

                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                      Control0..*
                                                      This element is affected by the following invariants: ele-1
                                                      TypeExtension
                                                      Standards StatusNormative (from Normative)
                                                      Alternate Namesextensions, user content
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                      SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                      • value @ url
                                                      • 848. Observation.component:mutation-prediction-software.value[x].coding
                                                        Definition

                                                        A reference to a code defined by a terminology system.

                                                        ShortCode defined by a terminology system
                                                        Comments

                                                        Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                        Control0..*
                                                        This element is affected by the following invariants: ele-1
                                                        TypeCoding
                                                        Summarytrue
                                                        Requirements

                                                        Allows for alternative encodings within a code system, and translations to other code systems.

                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        850. Observation.component:mutation-prediction-software.value[x].coding.id
                                                        Definition

                                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                        ShortUnique id for inter-element referencing
                                                        Control0..1
                                                        Typestring
                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                        852. Observation.component:mutation-prediction-software.value[x].coding.extension
                                                        Definition

                                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                        ShortAdditional content defined by implementations
                                                        Comments

                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                        Control0..*
                                                        This element is affected by the following invariants: ele-1
                                                        TypeExtension
                                                        Standards StatusNormative (from Normative)
                                                        Alternate Namesextensions, user content
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                        SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                        • value @ url
                                                        • 854. Observation.component:mutation-prediction-software.value[x].coding.system
                                                          Definition

                                                          The identification of the code system that defines the meaning of the symbol in the code.

                                                          ShortIdentity of the terminology system
                                                          Comments

                                                          The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typeuri
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to be unambiguous about the source of the definition of the symbol.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          856. Observation.component:mutation-prediction-software.value[x].coding.version
                                                          Definition

                                                          The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                          ShortVersion of the system - if relevant
                                                          Comments

                                                          Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                          NoteThis is a business versionId, not a resource version id (see discussion)
                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typestring
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          858. Observation.component:mutation-prediction-software.value[x].coding.code
                                                          Definition

                                                          A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                          ShortSymbol in syntax defined by the system
                                                          Comments

                                                          Note that FHIR strings SHALL NOT exceed 1MB in size

                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typecode
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to refer to a particular code in the system.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          860. Observation.component:mutation-prediction-software.value[x].coding.display
                                                          Definition

                                                          A representation of the meaning of the code in the system, following the rules of the system.

                                                          ShortRepresentation defined by the system
                                                          Comments

                                                          Note that FHIR strings SHALL NOT exceed 1MB in size

                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typestring
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          862. Observation.component:mutation-prediction-software.value[x].coding.userSelected
                                                          Definition

                                                          Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                          ShortIf this coding was chosen directly by the user
                                                          Comments

                                                          Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typeboolean
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          864. Observation.component:mutation-prediction-software.value[x].text
                                                          Definition

                                                          A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                          ShortPlain text representation of the concept
                                                          Comments

                                                          Very often the text is the same as a displayName of one of the codings.

                                                          Control0..1
                                                          This element is affected by the following invariants: ele-1
                                                          Typestring
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          866. Observation.component:mutation-prediction-software.dataAbsentReason
                                                          Definition

                                                          Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                          ShortWhy the component result is missing
                                                          Comments

                                                          "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                          The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                          Control0..1
                                                          This element is affected by the following invariants: obs-6
                                                          BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                          (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                          Codes specifying why the result (Observation.value[x]) is missing.

                                                          TypeCodeableConcept
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Requirements

                                                          For many results it is necessary to handle exceptional values in measurements.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          868. Observation.component:mutation-prediction-software.interpretation
                                                          Definition

                                                          A categorical assessment of an observation value. For example, high, low, normal.

                                                          ShortHigh, low, normal, etc.
                                                          Comments

                                                          Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                          Control0..0
                                                          BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                          (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                          Codes identifying interpretations of observations.

                                                          TypeCodeableConcept
                                                          Is Modifierfalse
                                                          Must Supportfalse
                                                          Summaryfalse
                                                          Requirements

                                                          For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                          Alternate NamesAbnormal Flag
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          870. Observation.component:mutation-prediction-software.referenceRange
                                                          Definition

                                                          Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                          ShortProvides guide for interpretation of component result
                                                          Comments

                                                          Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                          Control0..*
                                                          TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Requirements

                                                          Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          872. Observation.component:mutation-prediction-score
                                                          Slice Namemutation-prediction-score
                                                          Definition

                                                          Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                                                          ShortComponent results
                                                          Comments

                                                          For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                          Control0..1
                                                          TypeBackboneElement
                                                          Is Modifierfalse
                                                          Must Supporttrue
                                                          Summarytrue
                                                          Requirements

                                                          Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          874. Observation.component:mutation-prediction-score.id
                                                          Definition

                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                          ShortUnique id for inter-element referencing
                                                          Control0..1
                                                          Typestring
                                                          Is Modifierfalse
                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                          Summaryfalse
                                                          876. Observation.component:mutation-prediction-score.extension
                                                          Definition

                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                          ShortAdditional content defined by implementations
                                                          Comments

                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                          Control0..*
                                                          TypeExtension
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Alternate Namesextensions, user content
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          878. Observation.component:mutation-prediction-score.modifierExtension
                                                          Definition

                                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                          ShortExtensions that cannot be ignored even if unrecognized
                                                          Comments

                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                          Control0..*
                                                          TypeExtension
                                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                          Summarytrue
                                                          Requirements

                                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                          Alternate Namesextensions, user content, modifiers
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          880. Observation.component:mutation-prediction-score.code
                                                          Definition

                                                          Describes what was observed. Sometimes this is called the observation "code".

                                                          ShortType of component observation (code / type)
                                                          Comments

                                                          All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                          Control1..1
                                                          BindingFor example codes, see LOINCCodes
                                                          (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                          Codes identifying names of simple observations.

                                                          TypeCodeableConcept
                                                          Is Modifierfalse
                                                          Summarytrue
                                                          Requirements

                                                          Knowing what kind of observation is being made is essential to understanding the observation.

                                                          Pattern Value{
                                                            "coding" : [{
                                                              "system" : "http://loinc.org",
                                                              "code" : "LP70194-3"
                                                            }]
                                                          }
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          882. Observation.component:mutation-prediction-score.code.id
                                                          Definition

                                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                          ShortUnique id for inter-element referencing
                                                          Control0..1
                                                          Typestring
                                                          XML FormatIn the XML format, this property is represented as an attribute.
                                                          884. Observation.component:mutation-prediction-score.code.extension
                                                          Definition

                                                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                          ShortAdditional content defined by implementations
                                                          Comments

                                                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                          Control0..*
                                                          This element is affected by the following invariants: ele-1
                                                          TypeExtension
                                                          Standards StatusNormative (from Normative)
                                                          Alternate Namesextensions, user content
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          SlicingThis element introduces a set of slices on Observation.component.code.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                          • value @ url
                                                          • 886. Observation.component:mutation-prediction-score.code.coding
                                                            Definition

                                                            A reference to a code defined by a terminology system.

                                                            ShortCode defined by a terminology system
                                                            Comments

                                                            Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                            Control0..*
                                                            This element is affected by the following invariants: ele-1
                                                            TypeCoding
                                                            Summarytrue
                                                            Requirements

                                                            Allows for alternative encodings within a code system, and translations to other code systems.

                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            888. Observation.component:mutation-prediction-score.code.text
                                                            Definition

                                                            A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                            ShortPlain text representation of the concept
                                                            Comments

                                                            Very often the text is the same as a displayName of one of the codings.

                                                            Control0..1
                                                            This element is affected by the following invariants: ele-1
                                                            Typestring
                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                            Summarytrue
                                                            Requirements

                                                            The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                            Pattern ValuePrediction of the variation effect over the protein
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            890. Observation.component:mutation-prediction-score.value[x]
                                                            Definition

                                                            Prediction of the variation effect over the protein

                                                            ShortPrediction of the variation effect over the protein
                                                            Comments

                                                            Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                            Control0..1
                                                            TypeQuantity
                                                            [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                            Is Modifierfalse
                                                            Summarytrue
                                                            Requirements

                                                            An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            892. Observation.component:mutation-prediction-score.value[x].id
                                                            Definition

                                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                            ShortUnique id for inter-element referencing
                                                            Control0..1
                                                            Typestring
                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                            894. Observation.component:mutation-prediction-score.value[x].extension
                                                            Definition

                                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                            ShortAdditional content defined by implementations
                                                            Comments

                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                            Control0..*
                                                            This element is affected by the following invariants: ele-1
                                                            TypeExtension
                                                            Standards StatusNormative (from Normative)
                                                            Alternate Namesextensions, user content
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                            SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                            • value @ url
                                                            • 896. Observation.component:mutation-prediction-score.value[x].value
                                                              Definition

                                                              The value of the measured amount. The value includes an implicit precision in the presentation of the value.

                                                              ShortNumerical value (with implicit precision)
                                                              Comments

                                                              The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

                                                              Control0..1
                                                              This element is affected by the following invariants: ele-1
                                                              Typedecimal
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Precision is handled implicitly in almost all cases of measurement.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              898. Observation.component:mutation-prediction-score.value[x].comparator
                                                              Definition

                                                              How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

                                                              Short< | <= | >= | > - how to understand the value
                                                              Comments

                                                              Note that FHIR strings SHALL NOT exceed 1MB in size

                                                              Control0..1
                                                              This element is affected by the following invariants: ele-1
                                                              BindingThe codes SHALL be taken from QuantityComparator
                                                              (required to http://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1)

                                                              How the Quantity should be understood and represented.

                                                              Typecode
                                                              Is Modifiertrue because This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

                                                              Meaning if MissingIf there is no comparator, then there is no modification of the value
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              900. Observation.component:mutation-prediction-score.value[x].unit
                                                              Definition

                                                              A human-readable form of the unit.

                                                              ShortUnit representation
                                                              Comments

                                                              Note that FHIR strings SHALL NOT exceed 1MB in size

                                                              Control0..1
                                                              This element is affected by the following invariants: ele-1
                                                              Typestring
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              902. Observation.component:mutation-prediction-score.value[x].system
                                                              Definition

                                                              The identification of the system that provides the coded form of the unit.

                                                              ShortSystem that defines coded unit form
                                                              Comments

                                                              see http://en.wikipedia.org/wiki/Uniform_resource_identifier

                                                              Control0..1
                                                              This element is affected by the following invariants: ele-1, qty-3
                                                              Typeuri
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need to know the system that defines the coded form of the unit.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              904. Observation.component:mutation-prediction-score.value[x].code
                                                              Definition

                                                              A computer processable form of the unit in some unit representation system.

                                                              ShortCoded form of the unit
                                                              Comments

                                                              The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.

                                                              Control0..1
                                                              This element is affected by the following invariants: ele-1
                                                              Typecode
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              906. Observation.component:mutation-prediction-score.dataAbsentReason
                                                              Definition

                                                              Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                              ShortWhy the component result is missing
                                                              Comments

                                                              "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                              The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                              Control0..1
                                                              This element is affected by the following invariants: obs-6
                                                              BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                              (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                              Codes specifying why the result (Observation.value[x]) is missing.

                                                              TypeCodeableConcept
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Requirements

                                                              For many results it is necessary to handle exceptional values in measurements.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              908. Observation.component:mutation-prediction-score.interpretation
                                                              Definition

                                                              A categorical assessment of an observation value. For example, high, low, normal.

                                                              ShortHigh, low, normal, etc.
                                                              Comments

                                                              Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                              Control0..0
                                                              BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                              (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                              Codes identifying interpretations of observations.

                                                              TypeCodeableConcept
                                                              Is Modifierfalse
                                                              Must Supportfalse
                                                              Summaryfalse
                                                              Requirements

                                                              For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                              Alternate NamesAbnormal Flag
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              910. Observation.component:mutation-prediction-score.referenceRange
                                                              Definition

                                                              Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                              ShortProvides guide for interpretation of component result
                                                              Comments

                                                              Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                              Control0..*
                                                              TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Requirements

                                                              Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              912. Observation.component:mutation-prediction-evidence-value
                                                              Slice Namemutation-prediction-evidence-value
                                                              Definition

                                                              Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

                                                              ShortComponent results
                                                              Comments

                                                              For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                              Control0..1
                                                              TypeBackboneElement
                                                              Is Modifierfalse
                                                              Must Supporttrue
                                                              Summarytrue
                                                              Requirements

                                                              Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              914. Observation.component:mutation-prediction-evidence-value.id
                                                              Definition

                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                              ShortUnique id for inter-element referencing
                                                              Control0..1
                                                              Typestring
                                                              Is Modifierfalse
                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                              Summaryfalse
                                                              916. Observation.component:mutation-prediction-evidence-value.extension
                                                              Definition

                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                              ShortAdditional content defined by implementations
                                                              Comments

                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                              Control0..*
                                                              TypeExtension
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Alternate Namesextensions, user content
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              918. Observation.component:mutation-prediction-evidence-value.modifierExtension
                                                              Definition

                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                              Comments

                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                              Control0..*
                                                              TypeExtension
                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                              Summarytrue
                                                              Requirements

                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                              Alternate Namesextensions, user content, modifiers
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              920. Observation.component:mutation-prediction-evidence-value.code
                                                              Definition

                                                              Describes what was observed. Sometimes this is called the observation "code".

                                                              ShortType of component observation (code / type)
                                                              Comments

                                                              All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                              Control1..1
                                                              BindingFor example codes, see LOINCCodes
                                                              (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                              Codes identifying names of simple observations.

                                                              TypeCodeableConcept
                                                              Is Modifierfalse
                                                              Summarytrue
                                                              Requirements

                                                              Knowing what kind of observation is being made is essential to understanding the observation.

                                                              Pattern Value{
                                                                "coding" : [{
                                                                  "system" : "http://loinc.org",
                                                                  "code" : "93044-6"
                                                                }]
                                                              }
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              922. Observation.component:mutation-prediction-evidence-value.code.id
                                                              Definition

                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                              ShortUnique id for inter-element referencing
                                                              Control0..1
                                                              Typestring
                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                              924. Observation.component:mutation-prediction-evidence-value.code.extension
                                                              Definition

                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                              ShortAdditional content defined by implementations
                                                              Comments

                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                              Control0..*
                                                              This element is affected by the following invariants: ele-1
                                                              TypeExtension
                                                              Standards StatusNormative (from Normative)
                                                              Alternate Namesextensions, user content
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              SlicingThis element introduces a set of slices on Observation.component.code.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                              • value @ url
                                                              • 926. Observation.component:mutation-prediction-evidence-value.code.coding
                                                                Definition

                                                                A reference to a code defined by a terminology system.

                                                                ShortCode defined by a terminology system
                                                                Comments

                                                                Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                Control0..*
                                                                This element is affected by the following invariants: ele-1
                                                                TypeCoding
                                                                Summarytrue
                                                                Requirements

                                                                Allows for alternative encodings within a code system, and translations to other code systems.

                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                928. Observation.component:mutation-prediction-evidence-value.code.text
                                                                Definition

                                                                A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                                ShortPlain text representation of the concept
                                                                Comments

                                                                Very often the text is the same as a displayName of one of the codings.

                                                                Control0..1
                                                                This element is affected by the following invariants: ele-1
                                                                Typestring
                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                Summarytrue
                                                                Requirements

                                                                The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                                Pattern ValueConfidence score
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                930. Observation.component:mutation-prediction-evidence-value.value[x]
                                                                Definition

                                                                Confidence score given by the software.

                                                                ShortConfidence score
                                                                Comments

                                                                Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                                Control0..1
                                                                Typestring
                                                                [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                                Is Modifierfalse
                                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                Summarytrue
                                                                Requirements

                                                                An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                932. Observation.component:mutation-prediction-evidence-value.dataAbsentReason
                                                                Definition

                                                                Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                                ShortWhy the component result is missing
                                                                Comments

                                                                "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                                The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                                Control0..1
                                                                This element is affected by the following invariants: obs-6
                                                                BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                                (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                                Codes specifying why the result (Observation.value[x]) is missing.

                                                                TypeCodeableConcept
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Requirements

                                                                For many results it is necessary to handle exceptional values in measurements.

                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                934. Observation.component:mutation-prediction-evidence-value.interpretation
                                                                Definition

                                                                A categorical assessment of an observation value. For example, high, low, normal.

                                                                ShortHigh, low, normal, etc.
                                                                Comments

                                                                Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                                Control0..0
                                                                BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                                (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                                Codes identifying interpretations of observations.

                                                                TypeCodeableConcept
                                                                Is Modifierfalse
                                                                Must Supportfalse
                                                                Summaryfalse
                                                                Requirements

                                                                For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                                Alternate NamesAbnormal Flag
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                936. Observation.component:mutation-prediction-evidence-value.referenceRange
                                                                Definition

                                                                Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                                ShortProvides guide for interpretation of component result
                                                                Comments

                                                                Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                                Control0..*
                                                                TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Requirements

                                                                Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                938. Observation.component:rna-chg
                                                                Slice Namerna-chg
                                                                Definition

                                                                Incidence of genetic alteration according to the HGVS (Human Genome Variation Society) nomenclature. (example: r.67g>u)

                                                                ShortIncidence on the transcript
                                                                Comments

                                                                For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                                Control0..1
                                                                TypeBackboneElement
                                                                Is Modifierfalse
                                                                Must Supporttrue
                                                                Summarytrue
                                                                Requirements

                                                                Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                940. Observation.component:rna-chg.id
                                                                Definition

                                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                ShortUnique id for inter-element referencing
                                                                Control0..1
                                                                Typestring
                                                                Is Modifierfalse
                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                Summaryfalse
                                                                942. Observation.component:rna-chg.extension
                                                                Definition

                                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                ShortAdditional content defined by implementations
                                                                Comments

                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                Control0..*
                                                                TypeExtension
                                                                Is Modifierfalse
                                                                Summaryfalse
                                                                Alternate Namesextensions, user content
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                944. Observation.component:rna-chg.modifierExtension
                                                                Definition

                                                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                ShortExtensions that cannot be ignored even if unrecognized
                                                                Comments

                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                Control0..*
                                                                TypeExtension
                                                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                Summarytrue
                                                                Requirements

                                                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                Alternate Namesextensions, user content, modifiers
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                946. Observation.component:rna-chg.code
                                                                Definition

                                                                Describes what was observed. Sometimes this is called the observation "code".

                                                                ShortType of component observation (code / type)
                                                                Comments

                                                                All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                                Control1..1
                                                                BindingFor example codes, see LOINCCodes
                                                                (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                                Codes identifying names of simple observations.

                                                                TypeCodeableConcept
                                                                Is Modifierfalse
                                                                Summarytrue
                                                                Requirements

                                                                Knowing what kind of observation is being made is essential to understanding the observation.

                                                                Pattern Value{
                                                                  "coding" : [{
                                                                    "system" : "http://loinc.org",
                                                                    "code" : "LP232001-0"
                                                                  }]
                                                                }
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                948. Observation.component:rna-chg.code.id
                                                                Definition

                                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                ShortUnique id for inter-element referencing
                                                                Control0..1
                                                                Typestring
                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                950. Observation.component:rna-chg.code.extension
                                                                Definition

                                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                ShortAdditional content defined by implementations
                                                                Comments

                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                Control0..*
                                                                This element is affected by the following invariants: ele-1
                                                                TypeExtension
                                                                Standards StatusNormative (from Normative)
                                                                Alternate Namesextensions, user content
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                SlicingThis element introduces a set of slices on Observation.component.code.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                                • value @ url
                                                                • 952. Observation.component:rna-chg.code.coding
                                                                  Definition

                                                                  A reference to a code defined by a terminology system.

                                                                  ShortCode defined by a terminology system
                                                                  Comments

                                                                  Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                  Control0..*
                                                                  This element is affected by the following invariants: ele-1
                                                                  TypeCoding
                                                                  Summarytrue
                                                                  Requirements

                                                                  Allows for alternative encodings within a code system, and translations to other code systems.

                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  954. Observation.component:rna-chg.code.text
                                                                  Definition

                                                                  A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                                  ShortPlain text representation of the concept
                                                                  Comments

                                                                  Very often the text is the same as a displayName of one of the codings.

                                                                  Control0..1
                                                                  This element is affected by the following invariants: ele-1
                                                                  Typestring
                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                  Summarytrue
                                                                  Requirements

                                                                  The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                                  Pattern ValueIncidence on the transcript
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  956. Observation.component:rna-chg.value[x]
                                                                  Definition

                                                                  The information determined as a result of making the observation, if the information has a simple value.

                                                                  ShortActual component result
                                                                  Comments

                                                                  Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                                  Control0..1
                                                                  BindingUnless not suitable, these codes SHALL be taken from http://varnomen.hgvs.org
                                                                  (extensible to http://varnomen.hgvs.org)
                                                                  TypeCodeableConcept
                                                                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                                  Is Modifierfalse
                                                                  Summarytrue
                                                                  Requirements

                                                                  An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  958. Observation.component:rna-chg.value[x].id
                                                                  Definition

                                                                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                  ShortUnique id for inter-element referencing
                                                                  Control0..1
                                                                  Typestring
                                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                                  960. Observation.component:rna-chg.value[x].extension
                                                                  Definition

                                                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                  ShortAdditional content defined by implementations
                                                                  Comments

                                                                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                  Control0..*
                                                                  This element is affected by the following invariants: ele-1
                                                                  TypeExtension
                                                                  Standards StatusNormative (from Normative)
                                                                  Alternate Namesextensions, user content
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                                  • value @ url
                                                                  • 962. Observation.component:rna-chg.value[x].coding
                                                                    Definition

                                                                    A reference to a code defined by a terminology system.

                                                                    ShortCode defined by a terminology system
                                                                    Comments

                                                                    Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                                    Control0..*
                                                                    This element is affected by the following invariants: ele-1
                                                                    TypeCoding
                                                                    Summarytrue
                                                                    Requirements

                                                                    Allows for alternative encodings within a code system, and translations to other code systems.

                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    964. Observation.component:rna-chg.value[x].coding.id
                                                                    Definition

                                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                    ShortUnique id for inter-element referencing
                                                                    Control0..1
                                                                    Typestring
                                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                                    966. Observation.component:rna-chg.value[x].coding.extension
                                                                    Definition

                                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                    ShortAdditional content defined by implementations
                                                                    Comments

                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                    Control0..*
                                                                    This element is affected by the following invariants: ele-1
                                                                    TypeExtension
                                                                    Standards StatusNormative (from Normative)
                                                                    Alternate Namesextensions, user content
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                    SlicingThis element introduces a set of slices on Observation.component.value[x].coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                                                                    • value @ url
                                                                    • 968. Observation.component:rna-chg.value[x].coding.system
                                                                      Definition

                                                                      The identification of the code system that defines the meaning of the symbol in the code.

                                                                      ShortIdentity of the terminology system
                                                                      Comments

                                                                      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typeuri
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      Need to be unambiguous about the source of the definition of the symbol.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      970. Observation.component:rna-chg.value[x].coding.version
                                                                      Definition

                                                                      The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                                      ShortVersion of the system - if relevant
                                                                      Comments

                                                                      Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                                      NoteThis is a business versionId, not a resource version id (see discussion)
                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typestring
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      972. Observation.component:rna-chg.value[x].coding.code
                                                                      Definition

                                                                      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                                      ShortSymbol in syntax defined by the system
                                                                      Comments

                                                                      Note that FHIR strings SHALL NOT exceed 1MB in size

                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typecode
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      Need to refer to a particular code in the system.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      974. Observation.component:rna-chg.value[x].coding.display
                                                                      Definition

                                                                      A representation of the meaning of the code in the system, following the rules of the system.

                                                                      ShortRepresentation defined by the system
                                                                      Comments

                                                                      Note that FHIR strings SHALL NOT exceed 1MB in size

                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typestring
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      976. Observation.component:rna-chg.value[x].coding.userSelected
                                                                      Definition

                                                                      Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                                      ShortIf this coding was chosen directly by the user
                                                                      Comments

                                                                      Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typeboolean
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      978. Observation.component:rna-chg.value[x].text
                                                                      Definition

                                                                      A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                                      ShortPlain text representation of the concept
                                                                      Comments

                                                                      Very often the text is the same as a displayName of one of the codings.

                                                                      Control0..1
                                                                      This element is affected by the following invariants: ele-1
                                                                      Typestring
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      980. Observation.component:rna-chg.dataAbsentReason
                                                                      Definition

                                                                      Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                                      ShortWhy the component result is missing
                                                                      Comments

                                                                      "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                                      The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                                      Control0..1
                                                                      This element is affected by the following invariants: obs-6
                                                                      BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                                      (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                                      Codes specifying why the result (Observation.value[x]) is missing.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      For many results it is necessary to handle exceptional values in measurements.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      982. Observation.component:rna-chg.interpretation
                                                                      Definition

                                                                      A categorical assessment of an observation value. For example, high, low, normal.

                                                                      ShortHigh, low, normal, etc.
                                                                      Comments

                                                                      Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                                      Control0..0
                                                                      BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                                      (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                                      Codes identifying interpretations of observations.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Must Supportfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                                      Alternate NamesAbnormal Flag
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      984. Observation.component:rna-chg.referenceRange
                                                                      Definition

                                                                      Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                                      ShortProvides guide for interpretation of component result
                                                                      Comments

                                                                      Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                                      Control0..*
                                                                      TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      986. Observation.component:on-splicing-site
                                                                      Slice Nameon-splicing-site
                                                                      Definition

                                                                      Is the variant at an alternative splice site?

                                                                      ShortSplice site
                                                                      Comments

                                                                      For a discussion on the ways Observations can be assembled in groups together see Notes below.

                                                                      Control0..1
                                                                      TypeBackboneElement
                                                                      Is Modifierfalse
                                                                      Must Supporttrue
                                                                      Summarytrue
                                                                      Requirements

                                                                      Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      988. Observation.component:on-splicing-site.id
                                                                      Definition

                                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                      ShortUnique id for inter-element referencing
                                                                      Control0..1
                                                                      Typestring
                                                                      Is Modifierfalse
                                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                                      Summaryfalse
                                                                      990. Observation.component:on-splicing-site.extension
                                                                      Definition

                                                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                      ShortAdditional content defined by implementations
                                                                      Comments

                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                      Control0..*
                                                                      TypeExtension
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Alternate Namesextensions, user content
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      992. Observation.component:on-splicing-site.modifierExtension
                                                                      Definition

                                                                      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                      ShortExtensions that cannot be ignored even if unrecognized
                                                                      Comments

                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                      Control0..*
                                                                      TypeExtension
                                                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                      Summarytrue
                                                                      Requirements

                                                                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                      Alternate Namesextensions, user content, modifiers
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      994. Observation.component:on-splicing-site.code
                                                                      Definition

                                                                      Describes what was observed. Sometimes this is called the observation "code".

                                                                      ShortType of component observation (code / type)
                                                                      Comments

                                                                      All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

                                                                      Control1..1
                                                                      BindingFor example codes, see LOINCCodes
                                                                      (example to http://hl7.org/fhir/ValueSet/observation-codes)

                                                                      Codes identifying names of simple observations.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Summarytrue
                                                                      Requirements

                                                                      Knowing what kind of observation is being made is essential to understanding the observation.

                                                                      Pattern Value{
                                                                        "coding" : [{
                                                                          "system" : "http://terminology.hl7.org/CodeSystem/umls",
                                                                          "code" : "C0035687"
                                                                        }]
                                                                      }
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      996. Observation.component:on-splicing-site.value[x]
                                                                      Definition

                                                                      The information determined as a result of making the observation, if the information has a simple value.

                                                                      ShortActual component result
                                                                      Comments

                                                                      Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

                                                                      Control0..1
                                                                      Typeboolean
                                                                      [x] NoteSee Choice of Data Types for further information about how to use [x]
                                                                      Is Modifierfalse
                                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                      Summarytrue
                                                                      Requirements

                                                                      An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      998. Observation.component:on-splicing-site.dataAbsentReason
                                                                      Definition

                                                                      Provides a reason why the expected value in the element Observation.component.value[x] is missing.

                                                                      ShortWhy the component result is missing
                                                                      Comments

                                                                      "Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

                                                                      The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

                                                                      Control0..1
                                                                      This element is affected by the following invariants: obs-6
                                                                      BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason
                                                                      (extensible to http://hl7.org/fhir/ValueSet/data-absent-reason)

                                                                      Codes specifying why the result (Observation.value[x]) is missing.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      For many results it is necessary to handle exceptional values in measurements.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      1000. Observation.component:on-splicing-site.interpretation
                                                                      Definition

                                                                      A categorical assessment of an observation value. For example, high, low, normal.

                                                                      ShortHigh, low, normal, etc.
                                                                      Comments

                                                                      Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

                                                                      Control0..0
                                                                      BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes
                                                                      (extensible to http://hl7.org/fhir/ValueSet/observation-interpretation)

                                                                      Codes identifying interpretations of observations.

                                                                      TypeCodeableConcept
                                                                      Is Modifierfalse
                                                                      Must Supportfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

                                                                      Alternate NamesAbnormal Flag
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      1002. Observation.component:on-splicing-site.referenceRange
                                                                      Definition

                                                                      Guidance on how to interpret the value by comparison to a normal or recommended range.

                                                                      ShortProvides guide for interpretation of component result
                                                                      Comments

                                                                      Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

                                                                      Control0..*
                                                                      TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
                                                                      Is Modifierfalse
                                                                      Summaryfalse
                                                                      Requirements

                                                                      Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))