Code Information

Diagnosis Code: A51.9

Short Description: Early syphilis, unspecified

Long Description: Early syphilis, unspecified

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Infections with a predominantly sexual mode of transmission (A50-A64)
      • Early syphilis (A51)
        • A51.9 Early syphilis, unspecified

Code Version: 2017 ICD-10-CM

Diagnostic Related Group(s)

The code A51.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v34.0)
  • Other Infectious And Parasitic Diseases Diagnoses With Mcc (867)
  • Other Infectious And Parasitic Diseases Diagnoses With Cc (868)
  • Other Infectious And Parasitic Diseases Diagnoses Without Cc/mcc (869)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A51.9 Right Arrow 092.9 Early syphil latent NOS
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 A51.0 Primary genital syphilis
3 A51.1 Primary anal syphilis
4 A51.2 Primary syphilis of other sites
5 A51.3 Secondary syphilis of skin and mucous membranes
6 A51.31 Condyloma latum
7 A51.32 Syphilitic alopecia
8 A51.39 Other secondary syphilis of skin
9 A51.4 Other secondary syphilis
10 A51.41 Secondary syphilitic meningitis
11 A51.42 Secondary syphilitic female pelvic disease
12 A51.43 Secondary syphilitic oculopathy
13 A51.44 Secondary syphilitic nephritis
14 A51.45 Secondary syphilitic hepatitis
15 A51.46 Secondary syphilitic osteopathy
16 A51.49 Other secondary syphilitic conditions
17 A51.5 Early syphilis, latent

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