Athena Core Implementation Guide
4.2.0 - release

Athena Core Implementation Guide - Local Development build (v4.2.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: athenahealth Observation

Official URL: https://fhir.athena.io/StructureDefinition/ah-observation Version: 4.2.0
Active as of 2025-04-17 Computable Name: AthenahealthObservation
Keywords: Wire Format

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

Observations are a central element in healthcare, used to support diagnosis, monitor progress, determine baselines and patterns and even capture demographic characteristics. Most observations are simple name/value pair assertions with some metadata, but some observations group other observations together logically, or even are multi-component observations.
NOTE:<ul>

  • Pediatric vital observations (BMI Percentile, Weight-for-length Percentile, and Head Occipital-frontal Circumference Percentile) from Hospitalization (Inpatient) visits or charts are not supported.
  • Arterial blood pressure, Central venous pressure, and Ventilator observations are not supported.
  • Vital observations captured in the Ambulatory visits or charts during Procedures are not supported.

    • </ul>

    Usage:

    • This Resource Profile is not used by any profiles in this Implementation Guide

    Formal Views of Profile Content

    Description of Profiles, Differentials, Snapshots and how the different presentations work.

    This structure is derived from Observation

    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation 0..* Observation Measurements and simple assertions
    ... meta
    .... lastUpdated 0..1 instant When the resource version last changed
    .... security 0..* Coding Security Labels applied to this resource
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ... basedOn 0..0
    ... subject 0..1 Reference(Patient) Who and/or what the observation is about
    ... focus 0..0
    ... effective[x] 0..1 dateTime Clinically relevant time/time-period for observation
    ... value[x] 0..1 Actual result
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string
    ... bodySite 0..0
    ... method 0..0
    ... specimen 0..0
    ... device 0..0
    ... referenceRange
    .... low 0..0
    .... high 0..0
    .... type 0..0
    .... appliesTo 0..0
    .... age 0..0
    ... hasMember 0..0
    ... derivedFrom 0..0
    ... component
    .... value[x] 0..1 Actual component result
    ..... valueQuantity Quantity
    ..... valueString string
    .... interpretation 0..0
    .... referenceRange 0..0

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation C 0..* Observation Measurements and simple assertions
    dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources
    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
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label
    dom-6: A resource should have narrative for robust management
    obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present
    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
    ... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
    ele-1: All FHIR elements must have a @value or children
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    ... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    ... code Σ 1..1 CodeableConcept Type of observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.


    ele-1: All FHIR elements must have a @value or children
    ... subject Σ 0..1 Reference(Patient) Who and/or what the observation is about
    ele-1: All FHIR elements must have a @value or children
    ... effective[x] Σ 0..1 dateTime Clinically relevant time/time-period for observation
    ele-1: All FHIR elements must have a @value or children
    ... value[x] ΣC 0..1 Actual result
    ele-1: All FHIR elements must have a @value or children
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string

    doco Documentation for this format

    Terminology Bindings

    PathConformanceValueSetURI
    Observation.statusrequiredObservationStatus
    http://hl7.org/fhir/ValueSet/observation-status|4.0.1
    from the FHIR Standard
    Observation.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard
    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation C 0..* Observation Measurements and simple assertions
    obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present
    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
    ... id Σ 0..1 id Logical id of this artifact
    ... meta Σ 0..1 Meta Metadata about the resource
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    .... versionId Σ 0..1 id Version specific identifier
    .... lastUpdated Σ 0..1 instant When the resource version last changed
    .... source Σ 0..1 uri Identifies where the resource comes from
    .... profile Σ 0..* canonical(StructureDefinition) Profiles this resource claims to conform to
    .... security Σ 0..* Coding Security Labels applied to this resource
    Binding: All Security Labels (extensible): Security Labels from the Healthcare Privacy and Security Classification System.


    .... tag Σ 0..* Coding Tags applied to this resource
    Binding: CommonTags (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".


    ... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
    ... text 0..1 Narrative Text summary of the resource, for human interpretation
    ... contained 0..* Resource Contained, inline Resources
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
    ... identifier Σ 0..* Identifier Business Identifier for observation
    ... status ?!Σ 1..1 code registered | preliminary | final | amended +
    Binding: ObservationStatus (required): Codes providing the status of an observation.

    ... category 0..* CodeableConcept Classification of type of observation
    Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


    ... code Σ 1..1 CodeableConcept Type of observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.

    ... subject Σ 0..1 Reference(Patient) Who and/or what the observation is about
    ... encounter Σ 0..1 Reference(Encounter) Healthcare event during which this observation is made
    ... effective[x] Σ 0..1 dateTime Clinically relevant time/time-period for observation
    ... issued Σ 0..1 instant Date/Time this version was made available
    ... performer Σ 0..* Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) Who is responsible for the observation
    ... value[x] ΣC 0..1 Actual result
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string
    ... dataAbsentReason C 0..1 CodeableConcept Why the result is missing
    Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

    ... interpretation 0..* CodeableConcept High, low, normal, etc.
    Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


    ... note 0..* Annotation Comments about the observation
    ... referenceRange C 0..* BackboneElement Provides guide for interpretation
    obs-3: Must have at least a low or a high or text
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    .... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
    .... text 0..1 string Text based reference range in an observation
    ... component Σ 0..* BackboneElement Component results
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    .... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
    .... code Σ 1..1 CodeableConcept Type of component observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.

    .... value[x] Σ 0..1 Actual component result
    ..... valueQuantity Quantity
    ..... valueString string
    .... dataAbsentReason C 0..1 CodeableConcept Why the component result is missing
    Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.


    doco Documentation for this format

    Terminology Bindings

    PathConformanceValueSetURI
    Observation.meta.securityextensibleAll Security Labels
    http://hl7.org/fhir/ValueSet/security-labels
    from the FHIR Standard
    Observation.meta.tagexampleCommonTags
    http://hl7.org/fhir/ValueSet/common-tags
    from the FHIR Standard
    Observation.languagepreferredCommonLanguages
    http://hl7.org/fhir/ValueSet/languages
    from the FHIR Standard
    Additional Bindings Purpose
    AllLanguages Max Binding
    Observation.statusrequiredObservationStatus
    http://hl7.org/fhir/ValueSet/observation-status|4.0.1
    from the FHIR Standard
    Observation.categorypreferredObservationCategoryCodes
    http://hl7.org/fhir/ValueSet/observation-category
    from the FHIR Standard
    Observation.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard
    Observation.dataAbsentReasonextensibleDataAbsentReason
    http://hl7.org/fhir/ValueSet/data-absent-reason
    from the FHIR Standard
    Observation.interpretationextensibleObservationInterpretationCodes
    http://hl7.org/fhir/ValueSet/observation-interpretation
    from the FHIR Standard
    Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard
    Observation.component.dataAbsentReasonextensibleDataAbsentReason
    http://hl7.org/fhir/ValueSet/data-absent-reason
    from the FHIR Standard

    Differential View

    This structure is derived from Observation

    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation 0..* Observation Measurements and simple assertions
    ... meta
    .... lastUpdated 0..1 instant When the resource version last changed
    .... security 0..* Coding Security Labels applied to this resource
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ... basedOn 0..0
    ... subject 0..1 Reference(Patient) Who and/or what the observation is about
    ... focus 0..0
    ... effective[x] 0..1 dateTime Clinically relevant time/time-period for observation
    ... value[x] 0..1 Actual result
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string
    ... bodySite 0..0
    ... method 0..0
    ... specimen 0..0
    ... device 0..0
    ... referenceRange
    .... low 0..0
    .... high 0..0
    .... type 0..0
    .... appliesTo 0..0
    .... age 0..0
    ... hasMember 0..0
    ... derivedFrom 0..0
    ... component
    .... value[x] 0..1 Actual component result
    ..... valueQuantity Quantity
    ..... valueString string
    .... interpretation 0..0
    .... referenceRange 0..0

    doco Documentation for this format

    Key Elements View

    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation C 0..* Observation Measurements and simple assertions
    dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources
    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
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label
    dom-6: A resource should have narrative for robust management
    obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present
    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
    ... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
    ele-1: All FHIR elements must have a @value or children
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    ... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
    ele-1: All FHIR elements must have a @value or children
    ext-1: Must have either extensions or value[x], not both
    ... code Σ 1..1 CodeableConcept Type of observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.


    ele-1: All FHIR elements must have a @value or children
    ... subject Σ 0..1 Reference(Patient) Who and/or what the observation is about
    ele-1: All FHIR elements must have a @value or children
    ... effective[x] Σ 0..1 dateTime Clinically relevant time/time-period for observation
    ele-1: All FHIR elements must have a @value or children
    ... value[x] ΣC 0..1 Actual result
    ele-1: All FHIR elements must have a @value or children
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string

    doco Documentation for this format

    Terminology Bindings

    PathConformanceValueSetURI
    Observation.statusrequiredObservationStatus
    http://hl7.org/fhir/ValueSet/observation-status|4.0.1
    from the FHIR Standard
    Observation.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard

    Snapshot View

    NameFlagsCard.TypeDescription & Constraintsdoco
    .. Observation C 0..* Observation Measurements and simple assertions
    obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present
    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
    ... id Σ 0..1 id Logical id of this artifact
    ... meta Σ 0..1 Meta Metadata about the resource
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    Slice: Unordered, Open by value:url
    .... versionId Σ 0..1 id Version specific identifier
    .... lastUpdated Σ 0..1 instant When the resource version last changed
    .... source Σ 0..1 uri Identifies where the resource comes from
    .... profile Σ 0..* canonical(StructureDefinition) Profiles this resource claims to conform to
    .... security Σ 0..* Coding Security Labels applied to this resource
    Binding: All Security Labels (extensible): Security Labels from the Healthcare Privacy and Security Classification System.


    .... tag Σ 0..* Coding Tags applied to this resource
    Binding: CommonTags (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".


    ... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
    ... text 0..1 Narrative Text summary of the resource, for human interpretation
    ... contained 0..* Resource Contained, inline Resources
    ... Slices for extension 1..* Extension Extension
    Slice: Unordered, Open by value:url
    .... extension:ahChartSharingGroup 0..1 Reference(Organization) athenahealth Chart Sharing Group
    URL: https://fhir.athena.io/StructureDefinition/ah-chart-sharing-group
    .... extension:ahPractice 1..1 Reference(Organization) athenahealth Practice
    URL: https://fhir.athena.io/StructureDefinition/ah-practice
    .... extension:ahEstimatedGestationalAge 0..1 Quantity athenahealth Estimated Gestational Age
    URL: https://fhir.athena.io/StructureDefinition/ah-estimated-gestational-age
    .... extension:ahPublishedDateTimeToPortal 0..1 dateTime athenahealth Published Date Time To Portal
    URL: https://fhir.athena.io/StructureDefinition/ah-published-date-time-to-portal
    ... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
    ... identifier Σ 0..* Identifier Business Identifier for observation
    ... status ?!Σ 1..1 code registered | preliminary | final | amended +
    Binding: ObservationStatus (required): Codes providing the status of an observation.

    ... category 0..* CodeableConcept Classification of type of observation
    Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


    ... code Σ 1..1 CodeableConcept Type of observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.

    ... subject Σ 0..1 Reference(Patient) Who and/or what the observation is about
    ... encounter Σ 0..1 Reference(Encounter) Healthcare event during which this observation is made
    ... effective[x] Σ 0..1 dateTime Clinically relevant time/time-period for observation
    ... issued Σ 0..1 instant Date/Time this version was made available
    ... performer Σ 0..* Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) Who is responsible for the observation
    ... value[x] ΣC 0..1 Actual result
    .... valueQuantity Quantity
    .... valueCodeableConcept CodeableConcept
    .... valueString string
    ... dataAbsentReason C 0..1 CodeableConcept Why the result is missing
    Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

    ... interpretation 0..* CodeableConcept High, low, normal, etc.
    Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


    ... note 0..* Annotation Comments about the observation
    ... referenceRange C 0..* BackboneElement Provides guide for interpretation
    obs-3: Must have at least a low or a high or text
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    .... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
    .... text 0..1 string Text based reference range in an observation
    ... component Σ 0..* BackboneElement Component results
    .... id 0..1 string Unique id for inter-element referencing
    .... extension 0..* Extension Additional content defined by implementations
    .... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
    .... code Σ 1..1 CodeableConcept Type of component observation (code / type)
    Binding: LOINCCodes (example): Codes identifying names of simple observations.

    .... value[x] Σ 0..1 Actual component result
    ..... valueQuantity Quantity
    ..... valueString string
    .... dataAbsentReason C 0..1 CodeableConcept Why the component result is missing
    Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.


    doco Documentation for this format

    Terminology Bindings

    PathConformanceValueSetURI
    Observation.meta.securityextensibleAll Security Labels
    http://hl7.org/fhir/ValueSet/security-labels
    from the FHIR Standard
    Observation.meta.tagexampleCommonTags
    http://hl7.org/fhir/ValueSet/common-tags
    from the FHIR Standard
    Observation.languagepreferredCommonLanguages
    http://hl7.org/fhir/ValueSet/languages
    from the FHIR Standard
    Additional Bindings Purpose
    AllLanguages Max Binding
    Observation.statusrequiredObservationStatus
    http://hl7.org/fhir/ValueSet/observation-status|4.0.1
    from the FHIR Standard
    Observation.categorypreferredObservationCategoryCodes
    http://hl7.org/fhir/ValueSet/observation-category
    from the FHIR Standard
    Observation.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard
    Observation.dataAbsentReasonextensibleDataAbsentReason
    http://hl7.org/fhir/ValueSet/data-absent-reason
    from the FHIR Standard
    Observation.interpretationextensibleObservationInterpretationCodes
    http://hl7.org/fhir/ValueSet/observation-interpretation
    from the FHIR Standard
    Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
    http://hl7.org/fhir/ValueSet/observation-codes
    from the FHIR Standard
    Observation.component.dataAbsentReasonextensibleDataAbsentReason
    http://hl7.org/fhir/ValueSet/data-absent-reason
    from the FHIR Standard

     

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