ICD-10 Code H66.10 – Chronic tubotympanic suppurative otitis media, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H66.10 – Chronic tubotympanic suppurative otitis media, unspecified
What it is
H66.10 identifies chronic tubotympanic suppurative otitis media when the documentation does not specify laterality or further detail. It refers to a long-standing middle ear infection with persistent or recurrent drainage through the tympanic membrane.
Clinical signs
Typical findings include chronic ear discharge, a perforated tympanic membrane, and conductive hearing loss. Clinical features vary; refer to documentation for laterality, active drainage, and whether the process is current or historical.
When to use this code
Use this code when the provider documents chronic tubotympanic suppurative otitis media but gives no more specific site or side. It also fits when the note confirms chronic middle ear suppuration with tympanic membrane involvement and no additional detail. If the record is unclear, check documentation.
Do not use for
Do not use this code for acute otitis media, nonsuppurative otitis media, or cholesteatoma-related disease. If the documentation names a different chronic ear condition, choose the more specific code.
Coding tip
Look for the exact wording “chronic tubotympanic suppurative otitis media” and confirm whether the note adds a more specific code option.