description: This indicates that the element containing this extension has content that makes reference to the specified contained resource.\n* Expression may contain CQL or FHIRPath that makes reference to ValueSets\n* string may contain FHIRPath referencing ValueSets or contain escaped XHTML referencing images (as Binaries)\n* Narrative contains 'text' which is xhtml (and can't have extensions itself) which can also refer to images\n* markdown can refer to images.
package_name: hl7.fhir.uv.extensions
derivation: constraint
name: ReferencesContained
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/referencesContained'}
    index: 1
  value:
    choices: [valueReference]
    index: 3
  valueReference: {type: Reference, choiceOf: value, index: 4}
package_version: 5.2.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/referencesContained
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0
required: [valueReference, value]