description: 'R4B: `Appointment.patientInstruction` additional types (string) additional types from child elements (value)'
package_name: hl7.fhir.uv.xver-r4b.r5
derivation: constraint
name: ExtensionAppointment_PatientInstruction
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-Appointment.patientInstruction'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: Detailed information and instructions for the patient
    choices: [valueString]
    index: 2
  valueString:
    short: Detailed information and instructions for the patient
    type: string
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-Appointment.patientInstruction
base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0
version: 0.1.0
required: [url]