Diagnosis Code


Code Information

Diagnosis Code: A83.5

Short Description: California encephalitis

Long Description: California encephalitis

The code A83.5 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Viral and prion infections of the central nervous system (A80-A89)
      • Mosquito-borne viral encephalitis (A83)
        • A83.5 California encephalitis

Code Version: 2020 ICD-10-CM


  • California encephalitis virus infection
  • California encephalitis virus infection neuroinvasive disease
  • California serogroup viral meningitis
  • California serogroup virus neuroinvasive disease
  • Jamestown Canyon virus disease
  • Jamestown Canyon virus encephalitis
  • Keystone virus encephalitis
  • La Crosse encephalitis
  • La Crosse meningitis
  • Snowshoe hare virus encephalitis

References to Index of Diseases and Injuries

The code A83.5 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • California meningoencephalitis
    • La Crosse encephalitis

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A83.5 Right Arrow 062.5 California encephalitis

This ICD-10 to ICD-9 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-10 Code ICD-10 Description
A83 Mosquito-borne viral encephalitis
A83.0 Japanese encephalitis
A83.1 Western equine encephalitis
A83.2 Eastern equine encephalitis
A83.3 St Louis encephalitis
A83.4 Australian encephalitis
A83.6 Rocio virus disease
A83.8 Other mosquito-borne viral encephalitis
A83.9 Mosquito-borne viral encephalitis, unspecified

This page was last updated on: 10/1/2019