Current
A89 — Unspecified viral infection of central nervous system
Part of Chapter 1: Certain infectious and parasitic diseases , block Viral and prion infections of the central nervous system (A80-A89) .
Child Codes
A89 has no child codes in the FY 2027 release -- it is used on its own.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS