{

"resourceType": "CodeSystem",
"id": "codesystem-hierarchy-meaning",
"meta": {
  "lastUpdated": "2019-11-01T09:29:23.356+11:00"
},
"extension": [
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "vocab"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "normative"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
    "valueCode": "4.0.0"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 5
  }
],
"url": "http://hl7.org/fhir/codesystem-hierarchy-meaning",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.785"
  }
],
"version": "4.0.1",
"name": "CodeSystemHierarchyMeaning",
"title": "CodeSystemHierarchyMeaning",
"status": "active",
"experimental": false,
"date": "2019-11-01T09:29:23+11:00",
"publisher": "HL7 (FHIR Project)",
"contact": [
  {
    "telecom": [
      {
        "system": "url",
        "value": "http://hl7.org/fhir"
      },
      {
        "system": "email",
        "value": "fhir@lists.hl7.org"
      }
    ]
  }
],
"description": "The meaning of the hierarchy of concepts in a code system.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning",
"content": "complete",
"concept": [
  {
    "code": "grouped-by",
    "display": "Grouped By",
    "definition": "No particular relationship between the concepts can be assumed, except what can be determined by inspection of the definitions of the elements (possible reasons to use this: importing from a source where this is not defined, or where various parts of the hierarchy have different meanings)."
  },
  {
    "code": "is-a",
    "display": "Is-A",
    "definition": "A hierarchy where the child concepts have an IS-A relationship with the parents - that is, all the properties of the parent are also true for its child concepts. Not that is-a is a property of the concepts, so additional subsumption relationships may be defined using properties or the [subsumes](extension-codesystem-subsumes.html) extension."
  },
  {
    "code": "part-of",
    "display": "Part Of",
    "definition": "Child elements list the individual parts of a composite whole (e.g. body site)."
  },
  {
    "code": "classified-with",
    "display": "Classified With",
    "definition": "Child concepts in the hierarchy may have only one parent, and there is a presumption that the code system is a \"closed world\" meaning all things must be in the hierarchy. This results in concepts such as \"not otherwise classified.\"."
  }
]

}