{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The Gregorian calendar is the calendar in effect in most countries of Christian influence since approximately 1582. This calendar superceded the Julian calendar.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-Calendar",
  "property" : [ ],
  "codesystem" : "b58943a2-e8a8-5a0e-9a8f-93a697fb5cef",
  "concept_id" : "6e95e7e0-9517-5ca6-9d43-824b1c9b98d3",
  "ancestors" : {
    "GREG" : 0
  },
  "id" : "f1638488-d603-44fe-9522-2158553f5248",
  "code" : "GREG",
  "display" : "Gregorian",
  "version" : "2018-08-12"
}