http://hl7.org/fhir/StructureDefinition/BackboneType|5.0.0

description: 'BackboneType Type: Base definition for the few data types that are allowed to carry modifier extensions.'
derivation: specialization
name: BackboneType
abstract: true
type: BackboneType
elements:
  modifierExtension: {isModifier: true, short: Extensions that cannot be ignored even if unrecognized, array: true, isModifierReason: Modifier extensions are expected to modify the meaning or interpretation of the element that contains them, isSummary: true, index: 0}
class: complex-type
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/BackboneType
base: http://hl7.org/fhir/StructureDefinition/DataType
version: 5.0.0