description: Media to render/make available as an accompaniment to a specific answer option, for example - an image, video or audio clip.  This does not replace the need for answer.value[x].  The attachment.text SHOULD be present as the alternative/accessibility text for systems unable to expose the media and users unable to consume it.  Media.contentType SHALL be present.  When included in a QuestionnaireResponse it SHALL be the same as the media for the corresponding answerOption in the Questionnaire.
package_name: hl7.fhir.uv.sdc.r4b
derivation: constraint
name: ItemAnswerMedia
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemAnswerMedia'}
    index: 0
  value:
    choices: [valueAttachment]
    index: 2
  valueAttachment: {type: Attachment, choiceOf: value, index: 3}
package_version: 3.0.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemAnswerMedia
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 3.0.0