description: This cross-version extension represents SupplyRequest.item[x] from http://hl7.org/fhir/StructureDefinition/SupplyRequest|4.0.1 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r4.r5 derivation: constraint name: Ext_R4_SupplyRequest_item type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/4.0/StructureDefinition/extension-SupplyRequest.item'} index: 0 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Medication, Substance, or Device requested to be supplied choices: [valueCodeableConcept, valueReference] index: 2 valueCodeableConcept: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: CodeableConcept short: Medication, Substance, or Device requested to be supplied choiceOf: value index: 3 valueReference: base: {max: '1', min: 0, path: 'Extension.value[x]'} type: Reference short: Medication, Substance, or Device requested to be supplied choiceOf: value index: 4 package_version: 0.0.1-snapshot-2 class: extension kind: complex-type url: http://hl7.org/fhir/4.0/StructureDefinition/extension-SupplyRequest.item base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.0.1-snapshot-2 required: [url]