ICD-10-CM · Chapter 1 · A00-B99
A64 Unspecified sexually transmitted disease
This category is a complete, billable diagnosis code.
No additional specificity is required — submit A64 directly on claims and documentation without a subcode extension.
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category A64:
- Sexually Transmitted Infection (STI) — Infección de transmisión sexual (ITS)
Last reviewed: September 2026