J11.81
BillableInfluenza due to unidentified influenza virus with encephalopathy
J11.81 is the ICD-10-CM code for Influenza due to unidentified influenza virus with encephalopathy. It is a billable, specific code valid for reimbursement.
J00-J99 Diseases of the respiratory system
Includes
- •Influenzal encephalopathy NOS
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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