description: The numerator population membership is the number of subjects in the numerator after exceptions and exclusions. See ([https://hl7.org/fhir/us/cqfmeasures/measure-conformance.html](https://hl7.org/fhir/us/cqfmeasures/measure-conformance.html)) for further discussion. package_name: hl7.fhir.us.davinci-deqm derivation: constraint name: NumeratorMembership type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-numeratorMembership'} index: 0 value: short: The number of subjects in the numerator after exceptions and exclusions. choices: [valueQuantity] index: 2 valueQuantity: {type: Quantity, short: The number of subjects in the numerator after exceptions and exclusions., choiceOf: value, index: 3} package_version: 5.0.0-ballot class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/cqf-numeratorMembership base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-ballot