380: Disorders of external ear
380.2 Other otitis externa
380.21: Cholesteatoma of external ear
Keratosis obturans of external ear (canal)
Excludes:
cholesteatoma NOS (385.30-385.35)
postmastoidectomy (383.32)
380.22: Other acute otitis externa
Acute otitis externa:
actinic
chemical
contact
eczematoid
reactive
380.23: Other chronic otitis externa
Chronic otitis externa NOS
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