ICD-10-CM category
A51 Early syphilis
A51 is a category, not a billable code. Report one of the 15 complete codes below.
Codes in A51
- A51.0Primary genital syphilis
- A51.1Primary anal syphilis
- A51.2Primary syphilis of other sites
- A51.31Condyloma latum
- A51.32Syphilitic alopecia
- A51.39Other secondary syphilis of skin
- A51.41Secondary syphilitic meningitis
- A51.42Secondary syphilitic female pelvic disease
- A51.43Secondary syphilitic oculopathy
- A51.44Secondary syphilitic nephritis
- A51.45Secondary syphilitic hepatitis
- A51.46Secondary syphilitic osteopathy
- A51.49Other secondary syphilitic conditions
- A51.5Early syphilis, latent
- A51.9Early syphilis, unspecified
Outside the US? A51 in the international WHO ICD-10 lists its inclusion and exclusion notes.
Documenting A51? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free