A92: Other mosquito-borne viral fevers

Codes under A92 (Other mosquito-borne viral fevers). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
A92.0	Chikungunya virus disease	✓
A92.1	O'nyong-nyong fever	✓
A92.2	Venezuelan equine fever	✓
A92.3	West Nile virus infection	—
A92.4	Rift Valley fever	✓
A92.5	Zika virus disease	✓
A92.8	Other specified mosquito-borne viral fevers	✓
A92.9	Mosquito-borne viral fever, unspecified	✓
A92.30	West Nile virus infection, unspecified	✓
A92.31	West Nile virus infection with encephalitis	✓
A92.32	West Nile virus infection with other neurologic manifestation	✓
A92.39	West Nile virus infection with other complications	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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