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

FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.3.0-ballot-tc1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions

Extension: System user language

Official URL: http://hl7.org/fhir/StructureDefinition/cqf-systemUserLanguage Version: 5.3.0-ballot-tc1
Standards status: Deprecated Maturity Level: 3 Responsible: HL7 International / Clinical Decision Support Computable Name: SystemUserLanguage
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1699

Preferred language of the person using the system. DEPRECATED: This extension was initially used to model decision support context. This information is now handled as part of CDS Hooks and Clinical Reasoning.

Context of Use

This extension is deprecated and should no longer be used

This extension was initially used to model decision support context. This information is now handled as part of CDS Hooks and Clinical Reasoning.

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 data elements list has changed
  • One or more text definitions, invariants or bindings have changed

    • 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: Preferred language of the person using the system. DEPRECATED: This extension was initially used to model decision support context. This information is now handled as part of CDS Hooks and Clinical Reasoning.

    Maturity: 3

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Extension
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/cqf-systemUserLanguage"
    ... value[x] 1..1 CodeableConcept Value of extension
    Binding: AllLanguages (required): IETF language tag for a human language
    Additional BindingsPurpose
    CommonLanguages Starter

    doco Documentation for this format
    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Extension
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/cqf-systemUserLanguage"

    doco Documentation for this format

    This structure is derived from Extension

    Summary

    Simple Extension with the type CodeableConcept: Preferred language of the person using the system. DEPRECATED: This extension was initially used to model decision support context. This information is now handled as part of CDS Hooks and Clinical Reasoning.

    Maturity: 3

    Differential View

    This structure is derived from Extension

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Extension
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/cqf-systemUserLanguage"
    ... value[x] 1..1 CodeableConcept Value of extension
    Binding: AllLanguages (required): IETF language tag for a human language
    Additional BindingsPurpose
    CommonLanguages Starter

    doco Documentation for this format

    Snapshot View

    NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
    .. Extension 0..1 Extension Extension
    ... id 0..1 id Unique id for inter-element referencing
    ... extension 0..0
    ... url 1..1 uri "http://hl7.org/fhir/StructureDefinition/cqf-systemUserLanguage"

    doco Documentation for this format

     

    Other representations of profile: CSV, Excel, Schematron

    Terminology Bindings

    Path Status Usage ValueSet Version Source
    Extension.value[x] Base required All Languages 📦5.0.0 FHIR Std.

    Constraints

    Id Grade Path(s) Description Expression
    ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
    ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

    R4B

    The extension is unchanged in R4B

    R4

    The extension is unchanged in R4

    R3

    The extension is unchanged in R3

    Search Parameters for this Extension

    (none found)