{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "An \\\"as needed\\\" order should be accompanied by a description of what constitutes a need. This description is represented by an observation service predicate as a precondition.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActPriority",
  "property" : [ ],
  "codesystem" : "c765eab2-e92a-5c8a-928f-56bd4a02cae5",
  "concept_id" : "171f39d0-1350-54a8-9ccb-8597ad020b1e",
  "ancestors" : {
    "PRN" : 0
  },
  "id" : "743b9517-ce41-4d2f-8b3b-40f77ef47a9a",
  "code" : "PRN",
  "display" : "as needed",
  "version" : "2018-08-12"
}