description: This cross-version extension represents DeviceRequest.quantity from http://hl7.org/fhir/StructureDefinition/DeviceRequest|5.0.0 for use in FHIR R4. package_name: hl7.fhir.uv.xver derivation: constraint name: ext_R5_DeviceRequest_quantity type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Quantity of devices to supply choices: [valueInteger] index: 1 valueInteger: base: {path: 'Extension.value[x]'} type: integer short: Quantity of devices to supply choiceOf: value index: 2 url: pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-DeviceRequest.quantity'} index: 3 package_version: r5.r4-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-DeviceRequest.quantity base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]