A84.0 – Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]
ICD-10-CM 2027 diagnosis code · Viral and prion infections of the central nervous system
- Code
A84.0(claims format:A840)- Description
- Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]
- Short description
- Far Eastern tick-borne encephalitis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A80-A89 Viral and prion infections of the central nervous system
- Parent codes
- A84
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
A84 – Tick-borne viral encephalitis
- tick-borne viral meningoencephalitis
Block A80-A89
Index terms for A84.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in A84
Frequently asked questions
What is ICD-10 code A84.0?
A84.0 is the ICD-10-CM code for far Eastern tick-borne encephalitis [Russian spring-summer encephalitis], in the block A80-A89 (Viral and prion infections of the central nervous system).
Is A84.0 a billable code?
Yes. A84.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A84.0 belong to?
It belongs to category A84 – Tick-borne viral encephalitis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.