ICD-10 Code H66.2 – Chronic atticoantral suppurative otitis media (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H66.2 – Chronic atticoantral suppurative otitis media
What it is
H66.2 identifies chronic atticoantral suppurative otitis media, a long-standing middle ear infection involving the attic or antral area. It is used when the condition is documented as chronic and suppurative.
Clinical signs
Clinical features vary; refer to documentation. Typical references describe persistent or recurrent ear discharge, chronic middle ear disease, and findings consistent with attic or antral involvement.
When to use this code
Use H66.2 when the record specifically documents chronic atticoantral suppurative otitis media. You may see it in outpatient, inpatient, or specialist notes describing ongoing middle ear infection with chronic drainage or structural disease.
If the provider documents the diagnosis without further subtype detail, code exactly as stated. Check documentation when the note mentions otitis media but does not confirm the atticoantral, chronic, and suppurative elements.
Do not use for
Do not use this code for acute otitis media, serous otitis media, or nonsuppurative chronic otitis media. If the documentation does not support the atticoantral subtype, check documentation.
Coding tip
Code only when the provider clearly links chronic, suppurative, and atticoantral disease in the chart.