A84.1Billable

Central European tick-borne encephalitis

Chapter
1. Certain infectious and parasitic diseases
Category
A84
Effective date
October 1, 2026

Related codes in category A84

A84Tick-borne viral encephalitisA84.0Far Eastern tick-borne encephalitisYesA84.8Other tick-borne viral encephalitisA84.81Powassan virus diseaseYesA84.89Other tick-borne viral encephalitisYesA84.9Tick-borne viral encephalitis, unspecifiedYes

Frequently asked questions

What is ICD-10 code A84.1?

A84.1 is an ICD-10-CM diagnosis code for Central European tick-borne encephalitis.

Is A84.1 a billable code?

Yes. A84.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A84.1 in?

A84.1 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A84.1 become effective?

A84.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A84.1?

A84.1 belongs to category A84, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.