Code Information

Diagnosis Code: A51.0

Short Description: Primary genital syphilis

Long Description: Primary genital syphilis

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Infections with a predominantly sexual mode of transmission (A50-A64)
      • Early syphilis (A51)
        • A51.0 Primary genital syphilis

Code Version: 2017 ICD-10-CM

Diagnostic Related Group(s)

The code A51.0 is grouped in the following Diagnostic Related Group(s) (MS-DRG v34.0)
  • Inflammation Of The Male Reproductive System With Mcc (727)
  • Inflammation Of The Male Reproductive System Without Mcc (728)

References to Index of Diseases and Injuries

The code A51.0 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Syphilitic chancre NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A51.0 Right Arrow 091.0 Primary genital syphilis
This ICD-10 to ICD-9 data is based on the 2015 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

No. ICD-10 Code ICD-10 Description
1 A51 Early syphilis
2 A51.1 Primary anal syphilis
3 A51.2 Primary syphilis of other sites
4 A51.3 Secondary syphilis of skin and mucous membranes
5 A51.31 Condyloma latum
6 A51.32 Syphilitic alopecia
7 A51.39 Other secondary syphilis of skin
8 A51.4 Other secondary syphilis
9 A51.41 Secondary syphilitic meningitis
10 A51.42 Secondary syphilitic female pelvic disease
11 A51.43 Secondary syphilitic oculopathy
12 A51.44 Secondary syphilitic nephritis
13 A51.45 Secondary syphilitic hepatitis
14 A51.46 Secondary syphilitic osteopathy
15 A51.49 Other secondary syphilitic conditions
16 A51.5 Early syphilis, latent
17 A51.9 Early syphilis, unspecified

This page was last updated on: 1/1/2018