AA40.1 Acquired stenosis of external auditory canal
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Acquired stenosis of external auditory canal was described as resulting from a number of different causes. Since then, histology and imaging studies of this disease have shown that a common cascade of inflammatory changes resulting from these different causes is the primary pathogenesis leading to medial canal fibrosis. Once there is complete obstruction of the external auditory canal, surgery is the primary treatment.
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Laterality - only one may be selected
synonyms
- Acquired stenosis of external auditory canal
- Auditory canal narrowing
- acquired stricture of external auditory canal
- Collapse of external ear canal
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