description: Specifies which method to be used to aggregate the measure observation values. package_name: hl7.fhir.us.cqfmeasures derivation: constraint name: aggregateMethod type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod'} index: 0 valueCode: {type: code, index: 1} package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0