ICD-10 Code J11.83 – Influenza due to unidentified influenza virus with otitis media (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J11.83 – Influenza due to unidentified influenza virus with otitis media
What it is
Use this code for influenza caused by an unidentified influenza virus when the illness is documented with otitis media. It identifies flu infection with middle ear inflammation, not a confirmed specific influenza strain.
Clinical signs
Typical findings include influenza-like illness plus ear pain, ear fullness, or signs of middle ear infection. Clinical features vary; refer to documentation.
When to use this code
Assign J11.83 when the provider documents influenza and otitis media, and the influenza virus is not identified. Use it for encounters where the ear infection is linked to the flu diagnosis in the record. If the chart names a specific influenza virus, check documentation for a more specific code.
Do not use for
Do not use this code when influenza is confirmed as a specific virus type, or when otitis media is unrelated to influenza. Check documentation if the record only mentions ear symptoms without a diagnosed middle ear infection.
Coding tip
Code the influenza and the otitis media relationship only when the provider clearly links them in the documentation.