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Diagnosis Code

A51.5 EARLY SYPHILIS, LATENT


Code Information

Diagnosis Code: A51.5

Short Description: Early syphilis, latent

Long Description: Early syphilis, latent

The code A51.5 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Infections with a predominantly sexual mode of transmission (A50-A64)
      • Early syphilis (A51)
        • A51.5 Early syphilis, latent

Code Version: 2022 ICD-10-CM


Synonyms

  • Acquired syphilis
  • Acquired syphilis
  • Acquired syphilis - early latent
  • Early latent syphilis, positive serology, negative cerebrospinal fluid, less than 2 years after infection
  • Early latent syphilis, positive serology, negative cerebrospinal fluid, with relapse after treatment
  • Latent early syphilis
  • Latent syphilis
  • Latent syphilis
  • Latent syphilis
  • Latent syphilis
  • Latent syphilis
  • Latent syphilis with positive serology
  • Latent syphilis with positive serology
  • Serological relapse after treatment of latent early syphilis

Diagnostic Related Group(s)

The code A51.5 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • 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)

References to Index of Diseases and Injuries

The code A51.5 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Syphilis (acquired) without clinical manifestations, with positive serological reaction and negative spinal fluid test, less than two years after infection.

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A51.5 Right Arrow 092.0 Early syph latent relaps
092.9 Early syphil latent NOS

This ICD-10 to ICD-9 data is based on the 2018 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

ICD-10 Code ICD-10 Description
A51 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
A51.9 Early syphilis, unspecified

This page was last updated on: 10/1/2023

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