A81.89: Other atypical virus infections of central nervous system
A81.89 is the billable ICD-10-CM diagnosis code for Other atypical virus infections of central nervous system. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code A81.89?
A81.89 is the ICD-10-CM diagnosis code for Other atypical virus infections of central nervous system. It belongs to category A81 (Atypical virus infections of central nervous system).
Is A81.89 a billable code?
Yes. A81.89 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does A81.89 belong to?
A81.89 is part of ICD-10-CM category A81 — Atypical virus infections of central nervous system, which has 20 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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