MCMedicalCodingSoftware
A81.8

A81.8: Other atypical virus infections of central nervous system

Non-billable headerICD-10-CM

A81.8 is a non-billable header ICD-10-CM code for other atypical virus infections of central nervous system. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead A81.8

4 child codes. Green means billable.

Other codes under A81

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.