ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 18, 2017

See: Early syphilis

  ICD-10 Code for Primary genital syphilis A51.0

A51.0 is a valid1 ICD 10 diagnosis code.

A51.0 is valid for submission for HIPAA-covered transactions.

Chapter 1 Certain infectious and parasitic diseases (A00-B99)
Section A50-A64 Infections with a predominantly sexual mode of transmission (A50-A64)
Category A51 Early syphilis

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Syphilitic chancre NOS
See also ICD 10 code for

Related Terms to “Primary genital syphilis”

  • Bubo - I88.8
    • syphilitic(primary) - A51.0
  • Chancre(any genital site) (hard) (hunterian) (mixed) (primary) (seronegative) (seropositive) (syphilitic) - A51.0
    • urethra - A51.0
  • Lesion(s) (nontraumatic)
    • primary - A51.0See also Syphilis, primary
  • Syphilis, syphilitic(acquired) - A53.9
    • bubo(primary) - A51.0
    • chancre(multiple) - A51.0
      • Rollet's - A51.0
    • early - A51.9
    • genital(primary) - A51.0
    • penis(chancre) - A51.0
    • primary - A51.0
      • genital - A51.0
    • vagina - A51.0
    • vulva - A51.0
  • UlcusSee also Ulcer
    • durum(syphilitic) - A51.0
  • Vaginitis(acute) (circumscribed) (diffuse) (emphysematous) (nonvenereal) (ulcerative) - N76.0
    • syphilitic(early) - A51.0
  • Vulvitis(acute) (allergic) (atrophic) (hypertrophic) (intertriginous) (senile) - N76.2
    • syphilitic(early) - A51.0
See the 2017 ICD-10-CM Coding Guidelines.

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.