A92.3
Non-billableWest Nile virus infection
A92.3 is the ICD-10-CM code for West Nile virus infection. It is a non-billable category code — use a more specific child code such as A92.30 for billing.
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHWhat is West Nile Virus? West Nile virus (WNV) is an infectious disease. It is most often spread by the bite of an infected mosquito. Most people have no symptoms, while some may develop mild symptoms. But WNV can sometimes cause serious symptoms if the virus enters your brain. How does West Nile Virus spread? WNV usually spreads to people through the bite of an infected mosquito. However, in rare cases, it can…
Read more about West Nile Virus at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •West Nile fever
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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