ICD-10 Code
International Classification of Diseases, 10th Revision
Mar 23, 2019

See: Tick-borne viral encephalitis

A84 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Tick-borne viral encephalitis
  • tick-borne viral meningoencephalitis

More specific codes for Tick-borne viral encephalitis

  • A84.0 - Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]
  • A84.1 - Central European tick-borne encephalitis
  • A84.8 - Other tick-borne viral encephalitis
  • A84.9 - Tick-borne viral encephalitis, unspecified
See also ICD 10 code for
Back to A84
See the ICD-10-CM Coding Guidelines.

Questions related to A84 Tick-borne viral encephalitis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.