description: The Questionnaire resource is used to represent the information needs that a payer has to satisfy for their documentation requirements and/or rules. package_name: hl7.fhir.us.davinci derivation: constraint name: DTRQuestionnaire type: Questionnaire elements: extension: {type: Extension, url: 'http://hl7.org/fhir/StructureDefinition/cqf-library', index: 0} experimental: {index: 1} date: {index: 2} contact: {index: 3} item: constraint: dtrq-1: {human: Non-group items must have the cqf-expression extension, source: 'http://hl7.org/fhir/us/davinci-dtr/StructureDefinition/dtr-questionnaire-r4', severity: error, expression: 'type = ''group'' or extension.url = ''http://hl7.org/fhir/StructureDefinition/cqf-expression'''} index: 4 extensions: {} elements: extension: base: {max: '*', min: 0, path: Questionnaire.item.extension} type: Extension url: http://hl7.org/fhir/StructureDefinition/cqf-expression index: 5 package_version: dtr-1.1.0-ballot extensions: {} class: profile kind: resource url: http://hl7.org/fhir/us/davinci-dtr/StructureDefinition/dtr-questionnaire-r4 base: http://hl7.org/fhir/StructureDefinition/cqf-questionnaire version: 1.1.0-ballot required: [item, date, contact]