description: This acts as an overall 'required' binding for an element that already has a less restrictive binding.  It is used when there is a desire to have a 'small' enumerable binding that meets most needs and where the overall value set that the codes must be drawn from is 'infinite'.  The the base less restrictive binding SHALL be a proper subset of the max binding valueset.  In most cases, this extension is used where the base binding is 'extensible'.
package_name: hl7.fhir.uv.extensions.r3
derivation: constraint
name: MaxValueSet
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet'}
    index: 1
  value:
    choices: [valueUri, valueCanonical]
    index: 3
  valueUri: {type: uri, choiceOf: value, index: 4}
  valueCanonical: {type: canonical, choiceOf: value, index: 5}
package_version: 5.2.0-ballot
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0-ballot
required: [valueUri, valueCanonical, value]