H74.3Other acquired abnormalities of ear ossicles

H74.3 is the ICD-10-CM diagnosis code for other acquired abnormalities of ear ossicles. It belongs to category H74 (other disorders of middle ear mastoid), block H65-H75 (diseases of middle ear and mastoid) and chapter 8 (diseases of the ear and mastoid process). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within H74, choose H74.3 (Other acquired abnormalities of ear ossicles) only when documentation doesn't support a more specific option: Tympanosclerosis (H74.0), adhesive middle ear disease (H74.1), Discontinuity and dislocation of ear ossicles (H74.2), polyp of middle ear (H74.4), other specified disorders of middle ear and mastoid (H74.8) and unspecified disorder of middle ear and mastoid (H74.9).

To report this condition, pick the subcode that matches the documentation: H74.31 (ossicles), H74.32 (ossicles) and H74.39 (ossicles).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.