A99Billable
Unspecified viral hemorrhagic fever
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A99
- Effective date
- October 1, 2026
Frequently asked questions
What is ICD-10 code A99?
A99 is an ICD-10-CM diagnosis code for Unspecified viral hemorrhagic fever.
Is A99 a billable code?
Yes. A99 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A99 in?
A99 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A99 become effective?
A99 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.