description: Advance Directive Information VersionNumber Extension represents a string using the dateTime of the document to version successive replacement documents.
package_name: hl7.fhir.us.pacio-adi
derivation: constraint
name: DocumentReferenceVersionNumber
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/us/pacio-adi/StructureDefinition/adi-docVersionNumber-extension'}
    type: uri
    index: 1
  value:
    mustSupport: true
    choices: [valueString]
    index: 6
    slicing:
      slices:
        valueString:
          match: {}
          schema:
            mustSupport: true
            choices: [valueString]
            _required: true
            index: 6
          min: 1
          max: 1
  valueString:
    type: string
    mustSupport: true
    choiceOf: value
    index: 7
    slicing:
      slices:
        valueString:
          match: {}
          schema: {type: string, mustSupport: true, choiceOf: value, _required: true, index: 7}
          min: 1
          max: 1
package_version: 2.0.0-ballot
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/us/pacio-adi/StructureDefinition/adi-docVersionNumber-extension
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 2.0.0-ballot
required: [value, valueString]