description: A Study Instance ID, which may be used when the Entity type is not (110180, DCM, \"Study Instance UID\"). package_name: hl7.fhir.uv.extensions.r4b derivation: constraint name: AEParticipantObjectContainsStudy type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/auditevent-ParticipantObjectContainsStudy'} type: uri index: 1 value: choices: [valueIdentifier] index: 3 valueIdentifier: {type: Identifier, choiceOf: value, index: 4} package_version: 5.3.0-ballot-tc extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/auditevent-ParticipantObjectContainsStudy base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc required: [value, valueIdentifier]