ICD-10 Code H65.20 – Chronic serous otitis media, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H65.20 – Chronic serous otitis media, unspecified ear
What it is
Use this code for chronic fluid buildup behind the eardrum without signs of acute ear infection, when the ear is not specified. It describes persistent middle-ear effusion, not a bacterial or viral otitis media.
Clinical signs
Typical findings include a dull or retracted tympanic membrane, visible middle-ear fluid, and conductive hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use H65.20 when the record documents chronic serous otitis media and does not identify the right or left ear. It also fits follow-up visits for persistent effusion when the provider confirms the chronic condition. Check documentation if the note only says “otitis media” or “ear pain.”
Do not use for
Do not use this code for acute otitis media, suppurative otitis media, or cases with a clearly documented laterality. If the provider specifies another middle-ear disorder, code that condition instead.
Coding tip
Confirm that the documentation states chronic serous otitis media and that no ear laterality is recorded before assigning H65.20.