{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0702",
  "property" : [ ],
  "codesystem" : "f0d27c10-8b74-5891-b05e-4ed9c7b18d9c",
  "concept_id" : "72e2fce3-a67f-5742-bde7-77d9dbefac96",
  "ancestors" : {
    "PRV" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "A prevac cycle is vacuum assisted."
  } ],
  "id" : "ecb086eb-fc01-4f04-86ad-a098b5e59c50",
  "code" : "PRV",
  "display" : "Prevac",
  "version" : "2.9"
}