{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Conditional reads are supported, but only with the If-Modified-Since HTTP Header.",
  "system" : "http://hl7.org/fhir/conditional-read-status",
  "property" : [ ],
  "codesystem" : "62f86f49-b086-5829-a6b9-0c04a0a702b1",
  "concept_id" : "76e8d079-0f8f-57e4-abf9-61cbcc0c0f4c",
  "ancestors" : {
    "modified-since" : 0
  },
  "id" : "3dcb3c04-5093-47e8-9bde-e1e632ababa0",
  "code" : "modified-since",
  "display" : "If-Modified-Since",
  "version" : "4.0.1"
}