SNOMED CT is an international standard terminology. Therefore, maintenance of the terminology must be seen to adhere to standards that are open and transparent with a clear audit trail for each change made. This is particularly important where a SNOMED CT concept is inactivated and replaced with one or more concepts linked by historical associations or in exceptional cases, where no replacement is deemed necessary.
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Overview
| Inactivation Reason | Association | Summary Definition |
|---|
Ambiguous Concept | POSSIBLY_EQUIVALENT_TO | - The inactivated concept is inherently ambiguous, and each of the potential meanings represented by the concept is semantically identical to at least one other clinical concept.
|
Classification Concept | REPLACED_BY | - The inactivated concept originates from the “closed world” classification paradigm and as such is inappropriate content for use within the clinical record.
|
Concept Moved Elsewhere | ALTERNATIVE | - The jurisdictional control of a concept passes between extensions, or between the international core and an extension.
|
Duplicate Concept | SAME_AS | - The inactivated concept semantically represents exactly the meaning of the remaining active concept.
Note that the meaning of the concept is based on the FSN.
|
Erroneous Concept | REPLACED_BY | - The inactivated concept has an FSN which contains an error that when corrected potentially changes the semantic meaning of the concept.
|
Meaning Unknown | No association required | - The meaning of the inactivated concept cannot be determined.
|
Non-Conformance to Editorial Policy |
|
|
Outdated Concept | REPLACED_BY
| - The inactivated concept is an outdated concept that is no longer considered to be clinically acceptable or semantically interoperable internationally.
|
| POSSIBLY_REPLACED_BY |
| No suitable replacement identified |
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