CodeSystemHierarchyMeaning

Code System Hierarchy Meaning

activecomplete4 conceptsv5.0.0

The meaning of the hierarchy of concepts in a code system.

Metadata

hl7.org/fhir

Canonical URL: http://hl7.org/fhir/codesystem-hierarchy-meaning
All-Codes Value Set: http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning
ID: codesystem-hierarchy-meaning
Version: 5.0.0
Publisher: HL7 (FHIR Project)
Case Sensitive: Yes

In the unified registry

Concepts (4)

grouped-by

Grouped By

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).

is-a

Is-A

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.

part-of

Part Of

Child elements list the individual parts of a composite whole (e.g. body site).

classified-with

Classified With

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.".