description: 'R4B: `ChargeItem.product[x]` additional types (Reference(http://hl7.org/fhir/StructureDefinition/Medication), Reference(http://hl7.org/fhir/StructureDefinition/Substance))' package_name: hl7.fhir.uv.xver-r4b.r5 derivation: constraint name: ExtensionChargeItem_Product type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ChargeItem.product'} index: 0 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Product charged choices: [valueReference] index: 2 valueReference: short: Product charged refers: ['http://hl7.org/fhir/4.3/StructureDefinition/profile-Medication|0.1.0', 'http://hl7.org/fhir/4.3/StructureDefinition/profile-Substance|0.1.0', 'http://hl7.org/fhir/StructureDefinition/Medication|5.0.0', 'http://hl7.org/fhir/StructureDefinition/Substance|5.0.0'] type: Reference base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/4.3/StructureDefinition/extension-ChargeItem.product base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.1.0 required: [url]