Current
A51 — Early syphilis
Part of Chapter 1: Certain infectious and parasitic diseases , block Infections with a predominantly sexual mode of transmission (A50-A64) .
Child Codes
- A51.0 Primary genital syphilis Billable
- A51.1 Primary anal syphilis Billable
- A51.2 Primary syphilis of other sites Billable
- A51.3 Secondary syphilis of skin and mucous membranes Has subcodes
- A51.4 Other secondary syphilis Has subcodes
- A51.5 Early syphilis, latent Billable
- A51.9 Early syphilis, unspecified Billable
FY 2027 effective October 1, 2026 · CDC NCHS and CMS