ICD-10 Code H66.3X3 – Other chronic suppurative otitis media, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H66.3X3 – Other chronic suppurative otitis media, bilateral
What it is
This code identifies chronic suppurative otitis media affecting both ears. It means there is long-standing middle ear infection with persistent or recurrent drainage through the eardrum.
Clinical signs
Clinical features vary; refer to documentation. Common findings include chronic otorrhea, a perforated tympanic membrane, hearing loss, or a history of repeated ear infections.
When to use this code
Use H66.3X3 when the provider documents chronic suppurative otitis media in both ears. It is appropriate when the record confirms bilateral disease, even if one ear appears more active than the other.
Use it for ongoing infection with drainage that is not described as acute. Check documentation if the note only mentions otitis media, ear pain, or a past history without current chronic suppuration.
Do not use for
Do not use this code for acute otitis media, serous otitis media, or nonsuppurative otitis media. Check documentation if the provider does not clearly state bilateral chronic suppurative disease.
Coding tip
Confirm laterality and the word “chronic suppurative” in the assessment before assigning H66.3X3.