A51 Early syphilis
ICD-10-CM category A51 sits in Chapter 1 (Certain infectious and parasitic diseases, A00-B99). It contains 15 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
A51.3 Secondary syphilis of skin and mucous membranesA51.4 Other secondary syphilis
Billable codes in A51
| 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 |
Search within ICD-10-CM for A51 and related codes
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