description: A reference to a DICOM SOP Instance. package_name: hl7.fhir.us.codex-radiation-therapy derivation: constraint name: DicomReference type: Extension elements: extension: index: 0 slicing: slices: instanceUid: match: {} schema: short: DICOM SOP Instance UID mustSupport: true _required: true index: 1 extensions: {} elements: extension: {index: 2} url: pattern: {type: Uri, value: instanceUid} index: 3 value: choices: [valueId] index: 5 valueId: {type: id, choiceOf: value, index: 6} required: [value, valueId] sopClass: match: {} schema: short: DICOM SOP Class mustSupport: true index: 7 extensions: {} elements: extension: {index: 8} url: pattern: {type: Uri, value: sopClass} index: 9 value: choices: [valueCoding] index: 11 valueCoding: {type: Coding, choiceOf: value, index: 12} required: [valueCoding, value] url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-dicom-reference'} index: 13 value: choices: [] index: 15 package_version: 2.0.0 extensions: instanceUid: url: null short: DICOM SOP Instance UID mustSupport: true _required: true index: 1 extensions: {} elements: extension: {index: 2} url: pattern: {type: Uri, value: instanceUid} index: 3 value: choices: [valueId] index: 5 valueId: {type: id, choiceOf: value, index: 6} required: [value, valueId] sopClass: url: null short: DICOM SOP Class mustSupport: true index: 7 extensions: {} elements: extension: {index: 8} url: pattern: {type: Uri, value: sopClass} index: 9 value: choices: [valueCoding] index: 11 valueCoding: {type: Coding, choiceOf: value, index: 12} required: [valueCoding, value] class: extension kind: complex-type url: http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-dicom-reference base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0 required: [extension]