description: Narrative text to explain the improvement notation and how to interpret it. package_name: hl7.fhir.uv.extensions derivation: constraint name: CQFImprovementNotationGuidance type: Extension elements: url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-improvementNotationGuidance'} index: 0 value: choices: [valueMarkdown] index: 2 valueMarkdown: {type: markdown, choiceOf: value, index: 3} package_version: 5.3.0-ballot class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/cqf-improvementNotationGuidance base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot required: [value, valueMarkdown]