Codes that indicate an absence of an appendix, either as a clinical finding or due to appendicectomy
These codes were mapped first in SNOMED using the opencodelist builder. The search terms used were:
Though a broad search term, "appendix" was included to capture codes such as "congenital absence" or "excision of appendix". 24 codes were identified in SNOMED.
The codes were discussed by 2 practicing GPs and 1 epidemiologist. A summary of the discussion is available on the github issue below.
These codes were mapped to CTV3 which resulted in 23 codes initially. One extinct code was removed, and a further 5 "unasssured" codes were added, leaving 27 codes in total.
This definition has been computed by taking the manually created full codelist and converting it to a list of rules that define the codelist.
|XaBAV||Appendicectomy and drainage|
|7701z||Appendicectomy: [Other NOS] or [NEC]|
|7701.||Appendicectomy: [other] or [non emergency]|
|PB201||Congenital absence of appendix|
|77000||Emergency excision of abnormal appendix and drainage however further qualified|
|77003||Emergency appendicectomy NEC|
|77001||Emergency excision of abnormal appendix NEC|
|7700y||Other specified emergency excision of appendix|
|7700z||Emergency excision of appendix NOS|
|77002||Emergency excision of normal appendix|
|77014||Endoscopic appendicectomy NEC|
|77013||Planned delayed appendicectomy NEC|
|77011||Prophylactic appendicectomy NEC|
|7701y||Other specified other excision of appendix|
|77004||Laparoscopic emergency appendicectomy|
|XaBAT||Laparoscopic interval appendicectomy|
|XE0D7||Other excision of appendix|
|XE0D8||Other excision of appendix NOS|
Codes not in the full codelist are in faint grey.