ICD-10-CM Diagnosis Code (2025)
Official Description for A84
Tick-borne viral encephalitis
Coding Notes & Guidelines for A84
Includes Notes
tick-borne viral meningoencephalitis
Code First
, if applicable, transfusion related infection (T80.22-)
Inclusion Terms
Louping ill
Child Codes (More Specific Codes for A84):
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
A84.81 - Powassan virus disease
A84.89 - Other tick-borne viral encephalitis
A84.9 - Tick-borne viral encephalitis, unspecified
About ICD-10-CM Code A84 (Tick-borne viral encephalitis)
ICD-10-CM code A84 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM A84 became effective on October 1, 2024.
This page provides detailed information about A84 - Tick-borne viral encephalitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Tick-borne viral encephalitis.