Release 4B Snapshot #1
TerminologyThis page is part of the FHIR Specification v4.3.0-snapshot1: R4B Snapshot to support the Jan 2022 Connectathon. About the R4B version of FHIR. The current officially released version is 4.3.0. For a full list of available versions, see the Directory of published versions 
. Page versions: R5 R4B R4 R3
| Vocabulary Work Group | Maturity Level: N | Normative (from v4.0.0) | Use Context: Any |
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This page has been approved as part of an ANSI standard.
See the Conformance Package for further details.
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This is a value set defined by the FHIR project.
Summary
| Defining URL: | http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning |
| Version: | 4.3.0-snapshot1 |
| Name: | CodeSystemHierarchyMeaning |
| Title: | CodeSystemHierarchyMeaning |
| Definition: | The meaning of the hierarchy of concepts in a code system. |
| Committee: | Vocabulary Work Group |
| OID: | 2.16.840.1.113883.4.642.3.784 (for OID based terminology systems) |
| Source Resource | XML / JSON |
This value set is used in the following places:
http://hl7.org/fhir/codesystem-hierarchy-meaning
This expansion generated 20 Dec 2021
This value set contains 4 concepts
Expansion based on CodeSystemHierarchyMeaning v4.3.0-snapshot1 (CodeSystem)
All codes in this table are from the system http://hl7.org/fhir/codesystem-hierarchy-meaning
| 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.". |
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
| Lvl | A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information |
| Source | The source of the definition of the code (when the value set draws in codes defined elsewhere) |
| Code | The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract') |
| Display | The 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 |
| Definition | An explanation of the meaning of the concept |
| Comments | Additional notes about how to use the code |
FHIR ®© HL7.org 2011+. FHIR R4B Ballot #1 hl7.fhir.core#4.3.0-snapshot1 generated on Mon, Dec 20, 2021 14:10+1100.
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