066.41
West Nile Fever with encephalitis
The ICD-9 code for west nile fever with encephalitis is 066.41.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 066.41 →