| ICD-10 Code | Description |
| A51.0 | Primary genital syphilis |
| A51.1 | Primary anal syphilis |
| A51.2 | Primary syphilis of other sites |
| A51.31 | Condyloma latum |
| A51.32 | Syphilitic alopecia |
| A51.39 | Other secondary syphilis of skin |
| A51.41 | Secondary syphilitic meningitis |
| A51.42 | Secondary syphilitic female pelvic disease |
| A51.43 | Secondary syphilitic oculopathy |
| A51.44 | Secondary syphilitic nephritis |
| A51.45 | Secondary syphilitic hepatitis |
| A51.46 | Secondary syphilitic osteopathy |
| A51.49 | Other secondary syphilitic conditions |
| A51.5 | Early syphilis, latent |
| A51.9 | Early syphilis, unspecified |
