description: The Order Extension represents orders that are fulfilled by this document such as a radiologists report of an x-ray. package_name: hl7.fhir.uv.fhir-clinical-document.r4 derivation: constraint name: OrderExtension type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/fhir-clinical-document/StructureDefinition/OrderExtension'} index: 1 value: choices: [] index: 3 slicing: rules: open ordered: false discriminator: - {path: $this, type: type} min: 1 slices: valueReference: match: {} schema: mustSupport: true choices: [valueReference] _required: true index: 5 min: 1 max: 1 valueReference: refers: ['http://hl7.org/fhir/StructureDefinition/ServiceRequest'] type: Reference mustSupport: true choiceOf: value index: 6 slicing: slices: valueReference: match: {} schema: refers: ['http://hl7.org/fhir/StructureDefinition/ServiceRequest'] type: Reference mustSupport: true _required: true choiceOf: value index: 6 min: 1 max: 1 package_version: 1.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/uv/fhir-clinical-document/StructureDefinition/OrderExtension base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0-ballot required: [valueReference, value]