We're in the middle of updating our extension with the January 2018 International release, and (amongst many other things) have noticed some unusual changes.
Reactivation of concepts
There's concepts always been some level of "reactivation". But there's concepts being reactivated, only to replace the thing that previously replaced it.
E.g. 48673000|Adoptive child (person)| has been active since January 2002. But has just been retired and replaced by 393547004|Adopted child (person)| which has (always?) been inactive since 2003, and reactivated in this release.
Creation of duplicates
10386005|Congenital thrombocytopenia (disorder)| was retired back in 2009 (after being active for 7 years). But just had it's association updated as a duplicate of the newly created 737221003|Congenital thrombocytopenia (disorder)|.
449792004|Spacing of anterior maxillary teeth (disorder)| has been retired as a duplicate of the replaced by the newly created 734891006|Spacing of anterior maxillary teeth (finding)|
(The semantic tag changed, but see also
- 300258005 | Cyst of salivary gland (finding) | → | Cyst of salivary gland (disorder) |
- 402150002 | Insect bite reaction (disorder) | → | Insect bite reaction (finding) |
When is something reactivated or not?