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Diagnosis Code


Code Information

Diagnosis Code: A84.0

Short Description: Far Eastern tick-borne encephalitis

Long Description: Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]

The code A84.0 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)
      • Tick-borne viral encephalitis (A84)
        • A84.0 Far Eastern tick-borne encephalitis

Code Version: 2022 ICD-10-CM


  • Encephalitis caused by tick-borne encephalitis virus
  • Encephalitis due to Far Eastern tick-borne encephalitis virus

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A84.0 Right Arrow 063.0 Russia spr-summer enceph

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
A84 Tick-borne viral encephalitis
A84.1 Central European tick-borne encephalitis
A84.8 Other tick-borne viral encephalitis
A84.81 Powassan virus disease
A84.89 Other tick-borne viral encephalitis
A84.9 Tick-borne viral encephalitis, unspecified

This page was last updated on: 10/1/2023