A92.31
Billable codeWest Nile virus infection with encephalitis
The ICD-10 code for west nile virus infection with encephalitis is A92.31.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- West Nile encephalitis
- West Nile encephalomyelitis
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- A92.30West Nile virus infection, unspecified
- A92.32West Nile virus infection with other neurologic manifestation
- A92.39West Nile virus infection with other complications
- A92.31West Nile virus infection with encephalitis
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 06641
Associated MS-DRGs
A92.31 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.