description: This cross-version extension represents ElementDefinition.type.code from http://hl7.org/fhir/StructureDefinition/ElementDefinition|1.0.2 for use in FHIR R4B. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R2_ElementDefinition_ty_code type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Name of Data type or Resource choices: [valueCode] index: 1 valueCode: base: {path: 'Extension.value[x]'} type: code short: Name of Data type or Resource choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.type.code'} type: uri index: 3 package_version: r2.r4b-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.type.code base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]