{"resourceType":"CodeSystem","id":"codesystem-hierarchy-meaning","meta":{"lastUpdated":"2021-01-17T07:06:13.533+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":"2021-01-17T07:06:13+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.\"."}]}