{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Optional Extension Element - found in all resources.",
  "system" : "http://hl7.org/fhir/data-types",
  "property" : [ ],
  "codesystem" : "64d60637-8e29-560e-9b01-99cac280eb2d",
  "concept_id" : "d5eb31a7-1732-5ae3-b375-171d397de075",
  "ancestors" : {
    "Extension" : 0
  },
  "id" : "42bf9009-943f-415b-b066-0c853f0c1082",
  "code" : "Extension",
  "display" : "Extension",
  "version" : "4.0.1"
}