AA40 Acquired deformity of external auditory canal
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01
sections/codes in this section (AA40-AA40)
- Exostosis of external auditory canal (AA40.0)
- Acquired stenosis of external auditory canal (AA40.1)
- Cholesteatoma of external auditory canal (AA40.2)
- Other specified acquired deformity of external auditory canal (AA40.Y)
- Acquired deformity of external auditory canal, unspecified (AA40.Z)
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Laterality - only one may be selected
Specific anatomy - multiple selections are allowed
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