description: The location where a non-FHIR questionnaire/survey form can be found. This extension is used when the survey, form, or questionnaire which is being answered is not a FHIR [Questionnaire](https://www.hl7.org/fhir/questionnaire.html), otherwise the [canonical url](https://www.hl7.org/fhir/references.html#canonical) for the FHIR Questionnaire is used.
package_name: hl7.fhir.us.core
derivation: constraint
name: USCoreExtensionQuestionnaireUri
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-extension-questionnaire-uri'}
    index: 0
  value:
    choices: [valueUri]
    index: 2
  valueUri: {type: uri, choiceOf: value, index: 3}
package_version: 8.0.0-ballot
class: extension
kind: complex-type
url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-extension-questionnaire-uri
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 8.0.0-ballot