description: This cross-version extension represents DataRequirement.codeFilter.valueSet[x] from http://hl7.org/fhir/StructureDefinition/DataRequirement|3.0.2 for use in FHIR R4. package_name: hl7.fhir.uv.xver-r3.r4 derivation: constraint name: ext_R3_DataRequirement_co_valueSet type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Valueset for the filter choices: [valueString, valueReference] index: 1 valueString: base: {path: 'Extension.value[x]'} type: string short: Valueset for the filter choiceOf: value index: 2 valueReference: short: Valueset for the filter refers: ['http://hl7.org/fhir/StructureDefinition/ValueSet'] type: Reference base: {path: 'Extension.value[x]'} choiceOf: value index: 3 url: pattern: {type: uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-DataRequirement.codeFilter.valueSet'} type: uri index: 4 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-DataRequirement.codeFilter.valueSet base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]