066.40
West Nile Fever, unspecified
The ICD-9 code for west nile fever, unspecified is 066.40.
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 066.40 →