description: This cross-version extension represents ProcessRequest.item from http://hl7.org/fhir/StructureDefinition/ProcessRequest|3.0.2 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r3.r5 derivation: constraint name: ext_R3_ProcessRequest_item type: Extension elements: extension: array: true min: 1 index: 0 slicing: rules: closed ordered: false discriminator: - {path: url, type: value} min: 1 slices: sequenceLinkId: match: {url: null} schema: short: Service instance isModifier: false _required: true index: 1 elements: value: base: {path: 'Extension.value[x]'} short: Service instance choices: [valueInteger] index: 3 valueInteger: base: {path: 'Extension.value[x]'} type: integer short: Service instance choiceOf: value index: 4 url: pattern: {type: uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-ProcessRequest.item'} type: uri index: 5 package_version: 0.0.1-snapshot-1 extensions: sequenceLinkId: url: null short: Service instance isModifier: false _required: true index: 1 elements: value: base: {path: 'Extension.value[x]'} short: Service instance choices: [valueInteger] index: 3 valueInteger: base: {path: 'Extension.value[x]'} type: integer short: Service instance choiceOf: value index: 4 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-ProcessRequest.item base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [extension, url]