description: This cross-version extension represents BiologicallyDerivedProduct.quantity from http://hl7.org/fhir/StructureDefinition/BiologicallyDerivedProduct|4.3.0 for use in FHIR R5. package_name: hl7.fhir.uv.xver derivation: constraint name: ext_R4B_BiologicallyDerivedProduct_quantity type: Extension elements: value: base: {path: 'Extension.value[x]'} short: The amount of this biologically derived product choices: [valueInteger] index: 1 valueInteger: base: {path: 'Extension.value[x]'} type: integer short: The amount of this biologically derived product choiceOf: value index: 2 url: pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-BiologicallyDerivedProduct.quantity'} index: 3 package_version: r4b.r5-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/4.3/StructureDefinition/extension-BiologicallyDerivedProduct.quantity base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]