Discontinuity and dislocation of ear ossicles, unsp ear

This code signifies a disruption in the normal alignment or connection of the tiny bones (malleus, incus, stapes) within the middle ear, without specifying which ossicle is affected or the cause. This discontinuity impairs sound conduction from the eardrum to the inner ear, leading to conductive hearing loss.

Apply this code when documentation indicates a dislocation or separation of the ear ossicles, but the specific ossicle involved is not identified. This diagnosis is often made following otoscopic examination, audiometry showing conductive loss, and sometimes confirmed with imaging, though the imaging report may not specify the exact ossicle.

• Do not use this code if the specific ossicle involved (e.g., malleus, incus, stapes) is documented; instead, use a more specific code from the H74.2 subcategory.
• Ensure documentation clearly states "discontinuity" or "dislocation" of the ossicles. Terms like "fixation" or "ankylosis" would lead to different codes.
• Always code the laterality (left, right, bilateral) if specified in the medical record; this code represents an unspecified ear.