Absence of Appendix
Codelist metadata
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Coding system
- CTV3 (Read V3)
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Coding system release
- unknown
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Organisation
- OpenSAFELY
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Codelist ID
- opensafely/absence-of-appendix
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Version Tag
- 2020-09-28
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Version ID
- 5af6cb1d
Versions
About
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.
Codes not in the full codelist are in faint grey.
Clinical Findings
Xa7Tx)PB201)Operations, Procedures And Interventions
X20Wz)