{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "This definition adds additional rules to an existing concrete type.",
  "system" : "http://hl7.org/fhir/type-derivation-rule",
  "property" : [ ],
  "codesystem" : "c3cad0ca-8fb6-5291-83d9-1436bbc49778",
  "concept_id" : "cba6eb22-68f2-5a3d-abdf-6426ad4fc955",
  "ancestors" : {
    "constraint" : 0
  },
  "id" : "d652b4a1-d86a-44df-a3da-bafa83b771f2",
  "code" : "constraint",
  "display" : "Constraint",
  "version" : "4.0.1"
}