{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0528",
  "property" : [ ],
  "codesystem" : "018af8d4-23db-5038-8208-6d52f5ae3ece",
  "concept_id" : "2c8359aa-6d26-522a-9507-a3ec0e6779db",
  "ancestors" : {
    "HS" : 0
  },
  "id" : "5d4c46ed-916e-4b00-902f-9729d1dad343",
  "code" : "HS",
  "display" : "the hour of sleep (e.g., H18-22)",
  "version" : "2.9"
}