Cholesteatoma of tympanum, bilateral

This code represents a non-cancerous, cyst-like growth of squamous epithelium within the middle ear, specifically involving the tympanic membrane (eardrum), affecting both ears. This growth can erode surrounding bone and lead to hearing loss and other complications.

Use this code when documentation clearly indicates the presence of a cholesteatoma originating from or involving the tympanum in both the left and right ears. This diagnosis is typically made by an otolaryngologist based on otoscopic examination, imaging studies, and patient symptoms.

• Ensure documentation specifies "bilateral" involvement of the tympanum.
• Distinguish from cholesteatoma of the attic (H71.0-) or other parts of the middle ear (H71.1-).
• Code any associated complications, such as ossicular chain destruction or mastoiditis, separately.