description: This cross-version extension represents ChargeItemDefinition.instance from http://hl7.org/fhir/StructureDefinition/ChargeItemDefinition|4.3.0 for use in FHIR R5. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R4B_ChargeItemDefinition_instance type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Instances this definition applies to choices: [valueReference] index: 1 valueReference: short: Instances this definition applies to refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/Medication', 'http://hl7.org/fhir/StructureDefinition/Substance'] type: Reference base: {path: 'Extension.value[x]'} choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ChargeItemDefinition.instance'} type: uri 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-ChargeItemDefinition.instance base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]