Absence of Appendix
- Coding system
- CTV3 (Read V3)
- Organisation
- OpenSAFELY
- Codelist ID
- opensafely/absence-of-appendix
- Version Tag
- 2020-09-28
- Version ID
- 5af6cb1d
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 |
| 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 |
| 77012 | Incidental appendicectomy |
| 77010 | Interval appendicectomy |
| 77013 | Planned delayed appendicectomy NEC |
| 77011 | Prophylactic appendicectomy NEC |
| 7701y | Other specified other excision of appendix |
| 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 |
Codes not in the full codelist are in faint grey.