description: This indicates that the element containing this extension has an expression, xhtml, or some other content that makes reference to the specified contained resource in a way that is not detectable by the dom-3 constraint.  This extension is included to make the reference 'visible' to the dom-3 constraint.
package_name: hl7.fhir.uv.extensions.r4
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: 5.3.0-ballot-tc1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/referencesContained
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc1
required: [valueReference, value]