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TX: CodeSystem codesystem-hierarchy-meaning

Properties

Last updated: October 31, 2019 at 10:29:23 PM UTC
Defining URL http://hl7.org/fhir/codesystem-hierarchy-meaning
Version 4.0.1
Name CodeSystemHierarchyMeaning
Title CodeSystemHierarchyMeaning
Status active
Definition

The meaning of the hierarchy of concepts in a code system.
Publisher HL7 (FHIR Project)
Committee vocab
EXT_FMM_LEVEL 5
Source hl7.fhir.r4.core#4.0.1
Value Set CodeSystemHierarchyMeaning

This case-sensitive code system http://hl7.org/fhir/codesystem-hierarchy-meaning defines the following codes:

Code Display Definition
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 or the [subsumes](extension-codesystem-subsumes.html) extension.
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.".