ICD-10 Code H65.412 – Chronic allergic otitis media, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H65.412 – Chronic allergic otitis media, left ear
What it is
This code identifies chronic allergic otitis media affecting the left ear. It refers to a long-lasting middle ear condition linked to allergic inflammation, documented specifically on the left side.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings may include persistent middle ear inflammation, ear fullness, hearing changes, or recurrent effusion consistent with chronic otitis media.
When to use this code
Use this code when the provider documents chronic allergic otitis media in the left ear. It also fits follow-up visits where the condition remains active and laterality is clearly stated in the record.
If the note only says otitis media without chronicity, allergy, or left ear, check documentation before coding. Use the most specific diagnosis supported by the chart.
Do not use for
Do not use this code for acute otitis media, unspecified otitis media, or right ear disease. Check documentation if the record does not clearly support a chronic allergic diagnosis.
Coding tip
Always verify both chronicity and left ear laterality before assigning H65.412.