ICD-10 Code
International Classification of Diseases, 10th Revision
Mar 21, 2019

See: Early syphilis

A51 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Early syphilis

More specific codes for Early syphilis

  • A51.0 - Primary genital syphilis
  • A51.1 - Primary anal syphilis
  • A51.2 - Primary syphilis of other sites
  • A51.3 - Secondary syphilis of skin and mucous membranes
    • A51.31 - Condyloma latum
    • A51.32 - Syphilitic alopecia
    • A51.39 - Other secondary syphilis of skin
  • A51.4 - Other secondary syphilis
    • 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
See also ICD 10 code for
Back to A51
See the ICD-10-CM Coding Guidelines.

Questions related to A51 Early syphilis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.