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Code Information

Diagnosis Code: 066.41

Short Description: West Nile Fever w/enceph

Long Description: West Nile Fever with encephalitis

Code Classification:

  • Infectious and parasitic diseases (001–139)
    • Arthropod-borne viral diseases (060-066)
      • 066 Other arthropod-borne viral diseases
        • 066.41 West Nile Fever w/enceph

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 066.41 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
    • West Nile type 066.41
  • Encephalomyelitis (chronic) (granulomatous) (myalgic, benign) (see also Encephalitis) 323.9
    • West Nile 066.41
  • Fever 780.60
    • West
      • Nile (viral) 066.40
        • with
          • encephalitis 066.41
  • West Nile
    • encephalitis 066.41
    • encephalomyelitis 066.41
    • fever 066.40
      • with
        • encephalitis 066.41

Crosswalk Information

The code 066.41 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
066.41 Right Arrow A92.31 West Nile virus infection with encephalitis
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
066.0 Phlebotomus fever
066.1 Tick-borne fever
066.2 Venezuelan equine fever
066.3 Other mosquito-borne fever
066.40 West Nile Fever, unspecified
066.42 West Nile Fever with other neurologic manifestation
066.49 West Nile Fever with other complications
066.8 Other specified arthropod-borne viral diseases
066.9 Arthropod-borne viral disease, unspecified

This page was last updated on: 10/1/2014