Chronic mucoid otitis media, left ear

This diagnosis code signifies a persistent, non-suppurative inflammation of the middle ear in the left ear, characterized by the presence of thick, mucous-like fluid accumulation. This condition, often referred to as "glue ear," results from Eustachian tube dysfunction leading to negative pressure and fluid transudation. It can cause conductive hearing loss and aural fullness.

Apply this code when documentation explicitly states chronic mucoid otitis media affecting the left ear. This typically occurs in patients experiencing prolonged middle ear effusion without acute infection, often identified during otoscopic examination showing a dull, retracted tympanic membrane with fluid behind it. Supporting documentation should include laterality and the chronic nature of the condition.

• Differentiate from acute serous or suppurative otitis media; the "chronic" and "mucoid" aspects are key.
• Ensure laterality is clearly documented (left ear). If bilateral, a different code would be appropriate.
• Consider co-occurring conditions like Eustachian tube dysfunction (H69.-) or hearing loss (H90.-) for comprehensive coding.