A83 Mosquito-borne viral encephalitis
ICD-10-CM category A83 sits in Chapter 1 (Certain infectious and parasitic diseases, A00-B99). It contains 9 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Billable codes in A83
| Code | Description |
|---|---|
A83.0 | Japanese encephalitis |
A83.1 | Western equine encephalitis |
A83.2 | Eastern equine encephalitis |
A83.3 | St Louis encephalitis |
A83.4 | Australian encephalitis |
A83.5 | California encephalitis |
A83.6 | Rocio virus disease |
A83.8 | Other mosquito-borne viral encephalitis |
A83.9 | Mosquito-borne viral encephalitis, unspecified |
Search within ICD-10-CM for A83 and related codes
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