{
"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.\"." } ]
}