Inactivation Reason | Association | Definition |
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Duplicate | SAME_AS | This combination of inactivation reason and association type explicitly states that the inactivated concept (A) semantically represents exactly the meaning of the remaining active concept (B). Implicitly it also means that (A) SAME_AS (B) always, by definition implies (B) SAME_AS (A). The definition includes the requirement to ensure any analysis expressed in terms of (A) returns the same subtypes as would have been present had the concept (B) been substituted into the query logic, and vice versa. Please note that the meaning of the concept is based on the FSN. |
Guidance | ||
Equivalent FSNs but different semantic tags If the pair of semantic tags are within the following permitted pairs then an inactivation reason of "Duplicate" may still be used:
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Examples
Duplicate concepts:
Resolution
- Inactivate 235998001 | Perinephric abscess (disorder)|
Note: Both concepts had an effective date of 2002-01-31 and so the decision was based on current clinical usage and the retained concept already had a synonym of Perinephric abscess.
Duplicate concepts:
- 145857006 | Soft tissue X-ray abnormal (situation)|
- 168711005 | Soft tissue X-ray abnormal (finding)|
Resolution
Managing Incoming Historical Associations
The intention is that this functionality will be seamlessly integrated into the tooling so as to present to the user the appropriate updated historically association to be allocated.
Whenever an already stated “SAME_AS” target itself also becomes inactive - whether at the same release or later, identifying the replacement for the original concept, should follow the combinatorial logic stated below.
Combinatorial Logic |
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(A) SAME_AS (B) and (B) SAME_AS (C) implies (A) SAME_AS (C) (A) SAME_AS (B) and (B) REPLACED_BY (C) implies (A) REPLACED_BY (C) (AIntEd) SAME_AS (BIntEd) and (BIntEd) MOVED_TO (CNRC) implies (AIntEd) MOVED_TO (CNRC) (A) SAME_AS (B) and (B) POSSIBLY_EQUIVALENT_TO (C OR D) implies (A) POSSIBLY_EQUIVALENT_TO (C OR D) (A) SAME_AS (B) and (B) WAS_A (C AND D) implies (A) WAS_A (C AND D) |
Note: Once MOVED_TO the NRC we (SNOMED International) have no knowledge of what has happened to BIntEd