description: Count of operating cycles, e.g., the number of measurements taken by the device. package_name: hl7.fhir.uv.extensions.r3 derivation: constraint name: DeviceOperationCycle type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/device-operation-cycle'} index: 1 value: choices: [valueCount] index: 3 valueCount: {type: Count, choiceOf: value, index: 4} package_version: 5.3.0-ballot-tc1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/device-operation-cycle base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc1