A88.8 Other specified viral infections of central nervous system

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from A88 Other viral infections of central nervous system, not elsewhere classified

Excludes1 (never code together)

• viral encephalitis NOS (A86)
• viral meningitis NOS (A87.9)

MS-DRG index

Defines the logic of DRG(s) 097-099 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 049.8 Other specified non-arthropod-borne viral diseases of central nervous system (approximate)

Diagnosis Index entries for A88.8

• Coxsackie (virus) (infection) › central nervous system NEC
• Disease, diseased › enteroviral, enterovirus NEC › central nervous system NEC
• Infection, infected, infective (opportunistic) › virus, viral NOS › central nervous system › enterovirus NEC
• Infection, infected, infective (opportunistic) › virus, viral NOS › central nervous system › specified NEC

Nearby codes

• A88 Other viral infections of central nervous system, not elsewhere classified
• A88.0 Enteroviral exanthematous fever [Boston exanthem]
• A88.1 Epidemic vertigo
• A88.8 Other specified viral infections of central nervous system (this code)