{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The end user must choose one and only one of the selectable actions in the group. The user SHALL NOT choose none of the actions in the group.",
  "system" : "http://hl7.org/fhir/action-selection-behavior",
  "property" : [ ],
  "codesystem" : "e6960808-a6f3-5e64-9df1-afd1f7b3e791",
  "concept_id" : "55f09e55-0bc4-5e01-8fba-5102e1e18337",
  "ancestors" : {
    "exactly-one" : 0
  },
  "id" : "c2461db7-e68c-41f3-99fc-72d01eaa1699",
  "code" : "exactly-one",
  "display" : "Exactly One",
  "version" : "4.0.1"
}