BlockL1-AA8Level 2

Diseases of middle ear or mastoid

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AB10Disorders of Eustachian tube

AB11Mastoiditis or related conditions

AB12Cholesteatoma of middle ear

AB13Perforation of tympanic membrane

AB14Acute myringitis

AB15Chronic myringitis

AB16Tympanosclerosis

AB17Adhesive middle ear disease

AB18Discontinuity or dislocation of ear ossicles

AB19Acquired abnormalities of ear ossicles not related to discontinuity or dislocation

AB1APolyp of middle ear

AB1BMiddle ear cicatrix

AB1YOther specified diseases of middle ear or mastoid

AB1ZDiseases of middle ear or mastoid, unspecified

BlockL2-AA8Otitis media

No cross-system equivalences mapped for this node.