World Health Organization · 2026-01 · English
Diseases of middle ear or mastoid
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
10Otitis mediaAB10Disorders of Eustachian tubeAB11Mastoiditis or related conditionsAB12Cholesteatoma of middle earAB13Perforation of tympanic membraneAB14Acute myringitisAB15Chronic myringitisAB16TympanosclerosisAB17Adhesive middle ear diseaseAB18Discontinuity or dislocation of ear ossiclesAB19Acquired abnormalities of ear ossicles not related to discontinuity or dislocationAB1APolyp of middle earAB1BMiddle ear cicatrixAB1YOther specified diseases of middle ear or mastoidAB1ZDiseases of middle ear or mastoid, unspecified© World Health Organization · CC BY-ND 3.0 IGO