ICD-10 Code H66.3X1 – Other chronic suppurative otitis media, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H66.3X1 – Other chronic suppurative otitis media, right ear
What it is
This code identifies chronic suppurative otitis media affecting the right ear. It refers to a long-lasting middle ear infection with persistent or recurrent drainage through a perforated eardrum.
Clinical signs
Common findings include chronic ear discharge, a history of perforation, and conductive hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents chronic suppurative otitis media in the right ear and specifies that the condition is on the right side. It fits ongoing or recurrent suppurative middle ear disease, not a brief acute infection. If the note does not clearly identify the ear or chronicity, check documentation.
Do not use for
Do not use it for acute otitis media, nonsuppurative otitis media, or unspecified ear involvement. If the record describes a different chronic otitis media type, choose the more specific documented code.
Coding tip
Confirm both chronic suppuration and right-ear laterality in the provider note before assigning H66.3X1.