description: A module definition library that contains the effective data requirements for the measure (i.e. the calculated data requirements for the expressions referenced by the measure structure). package_name: hl7.fhir.us.cqfmeasures derivation: constraint name: CQFMEffectiveDataRequirements type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-effectiveDataRequirements'} index: 0 value: choices: [valueReference] index: 2 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/module-definition-library-cqfm'] index: 3 package_version: 4.0.0 class: extension kind: complex-type url: http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-effectiveDataRequirements base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.0.0