ICD-10-CM > A00-B99 > A80-A89 > A83 A83 Mosquito-borne viral encephalitis Non-Billable/Non-Specific Includes mosquito-borne viral meningoencephalitis Type 2 Excludes Venezuelan equine encephalitis (A92.2)West Nile fever (A92.3-)West Nile virus (A92.3-) Codes A83.0Japanese encephalitisA83.1Western equine encephalitisA83.2Eastern equine encephalitisA83.3St Louis encephalitisA83.4Australian encephalitisA83.5California encephalitisA83.6Rocio virus diseaseA83.8Other mosquito-borne viral encephalitisA83.9Mosquito-borne viral encephalitis, unspecified