HL7® Austria FHIR® Core Implementation Guide
2.1.0 - STU3

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

Extension: System OID

Official URL: http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-ext-valueset-systemoid Version: 2.1.0
Active as of 2025-09-07 Responsible: HL7® Austria, TC FHIR® Computable Name: SystemOID

HL7® Austria FHIR® Core Extension for the capturing of OID in ValueSets to reference the CodeSystem they come from. The extension is used to document the OID of the system of a code referenced in a ValueSet, to align FHIR with the HL7 Austria CDA document guidelines.

Context of Use

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

    • Element ID: ValueSet.compose.include
    • Element ID: ValueSet.expansion.contains
    • Element ID: http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-valueset#ValueSet.compose.include
    • Element ID: http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-valueset#ValueSet.expansion.contains

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

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

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension System OID
... extension 0..0
... url 1..1 uri "http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-ext-valueset-systemoid"
... value[x] 1..1 oid Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension System OID
... id 0..1 id Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-ext-valueset-systemoid"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type oid: HL7® Austria FHIR® Core Extension for the capturing of OID in ValueSets to reference the CodeSystem they come from. The extension is used to document the OID of the system of a code referenced in a ValueSet, to align FHIR with the HL7 Austria CDA document guidelines.

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension System OID
... extension 0..0
... url 1..1 uri "http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-ext-valueset-systemoid"
... value[x] 1..1 oid Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension System OID
... id 0..1 id Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.at/fhir/HL7ATCoreProfiles/5.0.0/StructureDefinition/at-core-ext-valueset-systemoid"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type oid: HL7® Austria FHIR® Core Extension for the capturing of OID in ValueSets to reference the CodeSystem they come from. The extension is used to document the OID of the system of a code referenced in a ValueSet, to align FHIR with the HL7 Austria CDA document guidelines.

 

Other representations of profile: CSV, Excel, Schematron

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()