ICD-10 Code J10.08 – Influenza due to other identified influenza virus with other specified pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J10.08 – Influenza due to other identified influenza virus with other specified pneumonia
What it is
Use this code for influenza caused by an identified influenza virus when the record also documents another specified pneumonia. It indicates a confirmed flu infection with a pneumonia diagnosis that is more specific than unspecified pneumonia.
Clinical signs
Clinical features vary; refer to documentation. Typical records may note influenza symptoms with evidence of pneumonia, such as cough, fever, shortness of breath, or imaging findings consistent with pneumonia.
When to use this code
Assign J10.08 when the provider documents influenza from another identified virus and specifies a pneumonia type other than unspecified. Use the code only when both conditions are clearly linked in the chart. If the pneumonia type is not documented, check documentation before coding.
Do not use for
Do not use this code for influenza without pneumonia, or when the influenza virus is not identified. Avoid it if the record only says “pneumonia” without a specified influenza association.
Coding tip
Verify that the influenza virus is identified and that the pneumonia is documented as “other specified” before assigning J10.08.