http://hl7.org/fhir/StructureDefinition/Extension|4.0.1

description: 'Base StructureDefinition for Extension Type: Optional Extension Element - found in all resources.'
derivation: specialization
name: Extension
type: Extension
elements:
  url:
    short: identifies the meaning of the extension
    representation: [xmlAttr]
    index: 0
  value:
    short: Value of extension
    choices: []
    index: 2
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/Extension
base: http://hl7.org/fhir/StructureDefinition/Element
version: 4.0.1
required: [url]