ICD-10-CM > A00-B99 > A80-A89 > A88 A88 Other viral infections of central nervous system, not elsewhere classified Non-Billable/Non-Specific Type 1 Excludes viral encephalitis NOS (A86)viral meningitis NOS (A87.9) Codes A88.0Enteroviral exanthematous fever [Boston exanthem]A88.1Epidemic vertigoA88.8Other specified viral infections of central nervous system