H74Level 2

Other disorders of middle ear mastoid

**Excludes2:** - mastoiditis (H70.-)

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H740Tympanosclerosis

H741Adhesive middle ear disease

H742Discontinuity and dislocation of ear ossicles

H743Other acquired abnormalities of ear ossicles

H744Polyp of middle ear

H748Other specified disorders of middle ear and mastoid

H749Unspecified disorder of middle ear and mastoid

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