A64Billable
Unspecified sexually transmitted disease
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A64
- Effective date
- October 1, 2026
Frequently asked questions
What is ICD-10 code A64?
A64 is an ICD-10-CM diagnosis code for Unspecified sexually transmitted disease.
Is A64 a billable code?
Yes. A64 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A64 in?
A64 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A64 become effective?
A64 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.