R4 Draft for Comment

This page is part of the FHIR Specification (v3.2.0: R4 Ballot 1). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3

4.2.12.785 Code System http://hl7.org/fhir/codesystem-hierarchy-meaning

Vocabulary Work Group Maturity Level: 5Normative Use Context: Any

Normative Candidate Note: This page is candidate normative content for R4 in the Conformance Package. Once normative, it will lose it's Maturity Level, and breaking changes will no longer be made.

This is a code system defined by the FHIR project.

Summary

Defining URL:http://hl7.org/fhir/codesystem-hierarchy-meaning
Name:CodeSystemHierarchyMeaning
Definition:

The meaning of the hierarchy of concepts in a code system

Committee:Vocabulary Work Group
OID:2.16.840.1.113883.4.642.1.785 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

4.2.12.785.1 Content

4.2.12.785.2 CodeSystemHierarchyMeaning

The meaning of the hierarchy of concepts in a code system

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

CodeDisplayDefinition
grouped-by Grouped ByNo 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-AA 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
part-of Part OfChild elements list the individual parts of a composite whole (e.g. body site)
classified-with Classified WithChild 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."

 

See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

LvlA few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code