A92 Other mosquito-borne viral fevers

Category / Non-billable header 12 subcodes

Block: Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)

Excludes 1 (cannot be coded together)

  • Ross River disease (B33.1)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
A92..0 Chikungunya virus disease Yes
A92..1 O'nyong-nyong fever Yes
A92..2 Venezuelan equine fever Yes
A92..3 West Nile virus infection No
A92..30 West Nile virus infection, unspecified Yes
A92..31 West Nile virus infection with encephalitis Yes
A92..32 West Nile virus infection with other neurologic manifestation Yes
A92..39 West Nile virus infection with other complications Yes
A92..4 Rift Valley fever Yes
A92..5 Zika virus disease Yes
A92..8 Other specified mosquito-borne viral fevers Yes
A92..9 Mosquito-borne viral fever, unspecified Yes

Last reviewed: September 2026