ICD-10 Code H65.3 – Chronic mucoid otitis media (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H65.3 – Chronic mucoid otitis media
What it is
Chronic mucoid otitis media is a long-lasting middle ear condition with persistent or recurrent nonpurulent fluid behind the eardrum. It is coded when documentation specifically identifies mucoid or chronic serous-type middle ear effusion.
Clinical signs
Common findings include middle ear effusion, a dull or retracted tympanic membrane, and conductive hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use H65.3 when the provider documents chronic mucoid otitis media, chronic middle ear effusion, or a similar noninfectious fluid collection in the middle ear. You may also use it when the record clearly distinguishes this from acute, suppurative, or adhesive otitis media.
Do not use for
Do not use this code for acute otitis media, suppurative otitis media, or ear pain without documented middle ear effusion. If the note is unclear, check documentation.
Coding tip
Confirm the documentation describes a chronic, nonpurulent middle ear effusion before assigning H65.3.