FHIR Extensions Pack
5.3.0-ballot-tc1 - (September 2025 Ballot) International flag

This page is part of the FHIR Core Extensions Registry (v5.3.0-ballot-tc1: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This version is a pre-release. The current official version is 5.2.0. For a full list of available versions, see the Directory of published versions

Extension: Artifact Topic

Official URL: http://hl7.org/fhir/StructureDefinition/artifact-topic Version: 5.3.0-ballot-tc1
Standards status: Trial-use Maturity Level: 2 Responsible: HL7 International / Clinical Decision Support Computable Name: ArtifactTopic
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1748

Descriptive topics related to the content of the artifact. Topics provide a high-level categorization of the artifact that can be useful for filtering and searching.

This extension is defined to support representing artifact metadata on resources that are not already canonical resources that have the corresponding element, and that behave in a definitional way. For example, it would not be appropriate to use this extension on a patient-specific resource such as MedicationRequest or CarePlan. For resources where this element was added in R5, the cross-version extension should be used rather than this extension (CodeSystem,ConceptMap,NamingSystem,ValueSet).

Context of Use

This extension may be used on the following element(s)

Usage info

Usages:

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

You can also check for usages in the FHIR IG Statistics

Changes since version 5.2.0:

  • The resource metadata has changed (purpose)

    • Formal Views of Extension Content

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

    This structure is derived from Extension

    Summary

    Simple Extension with the type CodeableConcept: Descriptive topics related to the content of the artifact. Topics provide a high-level categorization of the artifact that can be useful for filtering and searching.

    Maturity: 2

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"
    ... value[x] 1..1 CodeableConcept Value of extension
    Binding: DefinitionTopic (example): Topics associated with the artifact

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Simple Extension with the type CodeableConcept: Descriptive topics related to the content of the artifact. Topics provide a high-level categorization of the artifact that can be useful for filtering and searching.

    Maturity: 2

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"
    ... value[x] 1..1 CodeableConcept Value of extension
    Binding: DefinitionTopic (example): Topics associated with the artifact

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Terminology Bindings

    PathConformanceValueSetURI
    Extension.value[x]exampleDefinitionTopic
    http://hl7.org/fhir/ValueSet/definition-topic
    From the FHIR Standard

    Constraints

    IdGradePath(s)DetailsRequirements
    ele-1error**ALL** elementsAll FHIR elements must have a @value or children
    : hasValue() or (children().count() > id.count())
    ext-1error**ALL** extensionsMust have either extensions or value[x], not both
    : extension.exists() != value.exists()

    R4B

    The extension is represented a little differently in R4B:

    • Adjust the extension context ArtifactAssessment to Basic
    • Adjust the extension context ConditionDefinition to Basic
    • Note: Extensions that have been modified for R4B are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    . . . extension 0 .. 0
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"
    . . . value[x] 1.. 1 CodeableConcept Value of extension
    Binding: DefinitionTopic ( example ) : Topics associated with the artifact

    doco Documentation for this format

    R4

    The extension is represented a little differently in R4:

    • Adjust the extension context ArtifactAssessment to Basic
    • Adjust the extension context ClinicalUseDefinition to Basic
    • Adjust the extension context ConditionDefinition to Basic
    • Adjust the extension context SubstanceDefinition to Basic
    • Adjust the extension context SubscriptionTopic to Basic
    • Note: Extensions that have been modified for R4 are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    . . . extension 0 .. 0
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"
    . . . value[x] 1.. 1 CodeableConcept Value of extension
    Binding: DefinitionTopic ( example ) : Topics associated with the artifact

    doco Documentation for this format

    R3

    The extension is represented a little differently in R3:

    • Adjust the extension context ArtifactAssessment to Basic
    • Adjust the extension context ClinicalUseDefinition to Basic
    • Adjust the extension context ConditionDefinition to Basic
    • Adjust the extension context DeviceDefinition to Basic
    • Adjust the extension context ExampleScenario to Basic
    • Adjust the extension context MedicationKnowledge to Basic
    • Adjust the extension context ObservationDefinition to Basic
    • Adjust the extension context SpecimenDefinition to Basic
    • Adjust the extension context SubstanceDefinition to Basic
    • Adjust the extension context SubscriptionTopic to Basic
    • Adjust the extension context TerminologyCapabilities to Basic
    • Note: Extensions that have been modified for R3 are still draft while real-world experience is collected
    Name Flags Card. Type Description & Constraints      Filter: Filters doco
    . . Extension 0..* Extension E.g. Education, Treatment, Assessment, etc.
    . . . extension 0 .. 0
    . . . url 1 .. 1 uri "http://hl7.org/fhir/StructureDefinition/artifact-topic"
    . . . value[x] 1.. 1 CodeableConcept Value of extension
    Binding: DefinitionTopic ( example ) : Topics associated with the artifact

    doco Documentation for this format

    Search Parameters for this Extension

    (none found)