A84.81Billable

Powassan virus disease

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 encephalitisYesA84.1Central European tick-borne encephalitisYesA84.8Other tick-borne viral encephalitisA84.89Other tick-borne viral encephalitisYesA84.9Tick-borne viral encephalitis, unspecifiedYes

Frequently asked questions

What is ICD-10 code A84.81?

A84.81 is an ICD-10-CM diagnosis code for Powassan virus disease.

Is A84.81 a billable code?

Yes. A84.81 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A84.81 in?

A84.81 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A84.81 become effective?

A84.81 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A84.81?

A84.81 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.