{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "Description: Prior to beginning a regular period of extended sleep (this would exclude naps).  Note that this might occur at different times of day depending on a person's regular sleep schedule.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-TimingEvent",
  "property" : [ ],
  "codesystem" : "7912a691-9594-5cdd-be18-df9c3687b487",
  "concept_id" : "2c8359aa-6d26-522a-9507-a3ec0e6779db",
  "ancestors" : {
    "HS" : 0
  },
  "id" : "c25518cd-1aef-4f46-b1bd-c1249497a1e9",
  "code" : "HS",
  "display" : "HS",
  "version" : "2018-08-12"
}