description: A description of the instance in an ImagingStudy. package_name: rs/hl7.fhir.eu.imaging derivation: constraint name: ImImagingStudyInstanceDescription type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.eu/fhir/imaging-r5/StructureDefinition/instance-description'} type: uri index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: r5-0.1.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.eu/fhir/imaging-r5/StructureDefinition/instance-description base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0-ballot