Otosclerosis w oval window, nonobliterative, right ear

This code describes otosclerosis, a condition characterized by abnormal bone growth in the middle ear, specifically affecting the oval window of the right ear. In this nonobliterative form, the stapes footplate is fixated but not completely overgrown or fused, leading to conductive hearing loss.

Use this code when documentation confirms a diagnosis of nonobliterative otosclerosis impacting the oval window of the patient's right ear. This typically presents with progressive conductive hearing loss and is often diagnosed through audiometry and otoscopic examination.

• Ensure laterality is clearly documented (right ear).
• Distinguish between nonobliterative and obliterative forms of otosclerosis, as separate codes exist.
• Confirm the specific anatomical involvement (oval window) as other middle ear structures can be affected.