Absence of Appendix
- Coding system
- CTV3 (Read V3)
- Coding system release
- unknown
- Organisation
- OpenSAFELY
- Codelist ID
- opensafely/absence-of-appendix
- Version Tag
- 2020-09-24
- Version ID
- 262524bd
Versions
- 2020-09-28
- 2020-09-24
Description
Codes that indicate an absence of an appendix, either as a clinical finding or due to appendicectomy
Methodology
These codes were mapped first in SNOMED using the opencodelist builder. The search terms used were:
- Appendicectomy
- Appendectomy
- Appendix
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.
References
Signed off by
- Will Hulme, (Sept. 24, 2020)
- Amir Mehrkar, (Sept. 24, 2020)
- Caroline Morton, (Sept. 24, 2020)
Codelists are developed by a broad community of users for individual study purposes, which may or may not meet the needs of other studies. They should not be thought of as universal definitions of a particular condition.
We don't offer any guarantees about what they do or don't identify. Users should carefully check that any codelist meets their needs, and seek clinical input where appropriate.
CTV3Code | CTV3PreferredTermDesc |
---|---|
X20Wz | Appendicectomy |
Xa9U0 | Appendicectomy NEC |
XaBAV | Appendicectomy and drainage |
7701z | Appendicectomy: [Other NOS] or [NEC] |
7701. | Appendicectomy: [other] or [non emergency] |
Xa7Tx | Appendix absent |
PB201 | Congenital absence of appendix |
7700. | Emergency appendicectomy |
77003 | Emergency appendicectomy NEC |
77001 | Emergency excision of abnormal appendix NEC |
7700z | Emergency excision of appendix NOS |
77002 | Emergency excision of normal appendix |
77014 | Endoscopic appendicectomy NEC |
77012 | Incidental appendicectomy |
77010 | Interval appendicectomy |
X20X1 | Inversion appendicectomy |
Xa9w5 | Laparoscopic appendicectomy |
77004 | Laparoscopic emergency appendicectomy |
XaBAT | Laparoscopic interval appendicectomy |
X20X0 | Non-emergency appendicectomy |
XE0D7 | Other excision of appendix |
XE0D8 | Other excision of appendix NOS |
.79F1 | Unknown concept (status: Redundant) |
Codes not in the full codelist are in faint grey.