A84 Tick-borne viral encephalitis

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Tick-borne viral encephalitis is A84 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
A80-A89: Viral and prion infections of the central nervous system (A80-A89)
Category A84
7 codes (5 billable)
FY2026 Status
Stable since FY2024
Includes
  • tick-borne viral meningoencephalitis

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference A84 with the canonical source and edition:

A84 — Tick-borne viral encephalitis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/A84

Canonical URL: https://icd10codingpro.com/codes/A84

Related Codes

All Codes in A84

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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