ICD-10 Code H65.22 – Chronic serous otitis media, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H65.22 – Chronic serous otitis media, left ear
What it is
H65.22 identifies chronic serous otitis media affecting the left ear. It means persistent middle-ear fluid without acute infection, documented as a long-lasting effusion.
Clinical signs
Typical findings include hearing loss, ear fullness, and reduced tympanic membrane mobility. Clinical features vary; refer to documentation for laterality and whether the effusion is chronic.
When to use this code
Use H65.22 when the record clearly states chronic serous otitis media in the left ear. It also fits when the provider documents chronic middle-ear effusion or serous otitis media with left-sided laterality. Code only when the chronic condition is specifically supported.
Do not use for
Do not use this code for acute otitis media, unspecified otitis media, or right ear disease. Check documentation if the note does not confirm chronic serous disease or left-ear laterality.
Coding tip
Verify both chronicity and laterality in the provider note before assigning H65.22.