A92.30

What This Code Means

West Nile virus infection is a disease spread by mosquitoes that can cause fever, body aches, and sometimes more serious neurological complications. This code is used when a patient has confirmed West Nile virus but the specific type or severity of infection has not been determined.

Coding Tips

• •Use this unspecified code only when the clinical documentation does not specify the type of West Nile virus infection (such as neuroinvasive disease, non-neuroinvasive febrile illness, or other manifestations); if the type is documented, use the more specific subcategory codes (A92.31, A92.32, etc.)
• •Verify that West Nile virus has been confirmed through laboratory testing before coding; suspected or probable cases may require different coding depending on your facility's guidelines and the stage of diagnosis