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A81.8

Non-billable

Other atypical virus infections of central nervous system

A81.8 is the ICD-10-CM code for Other atypical virus infections of central nervous system. It is a non-billable category code — use a more specific child code such as A81.81 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Parent
A81
Subcodes
4
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code A81.8?
A81.8 is the ICD-10-CM code for "Other atypical virus infections of central nervous system". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A81.8 a billable code?
No — A81.8 is a non-billable header code. Use a more specific child code (such as A81.81) for billing.
What are the subcodes of A81.8?
A81.8 has 4 more specific child codes, including A81.81, A81.82, A81.83.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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