{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (include descendant codes and self).",
  "system" : "http://hl7.org/fhir/filter-operator",
  "property" : [ ],
  "codesystem" : "841c428b-122e-5290-987c-c8363c863331",
  "concept_id" : "ab3c14fe-f9b6-5150-af76-156a4548ecad",
  "ancestors" : {
    "is-a" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "The definition of is-a is that all the properties of the value are true for the specified property of the code, which means that a code has an is-a relationship with itself. To exclude the root code, use descendent-of"
  } ],
  "id" : "2bc1a967-5a8f-4dfa-8b58-1f2b1db625fd",
  "code" : "is-a",
  "display" : "Is A (by subsumption)",
  "version" : "4.0.1"
}