ICD-10-CM Code A51.5

Early syphilis, latent

Version 2021 Billable Code

Valid for Submission

A51.5 is a billable code used to specify a medical diagnosis of early syphilis, latent. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code A51.5 might also be used to specify conditions or terms like 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 with positive serology, etc

ICD-10:A51.5
Short Description:Early syphilis, latent
Long Description:Early syphilis, latent

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code A51.5:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Syphilis (acquired) without clinical manifestations, with positive serological reaction and negative spinal fluid test, less than two years after infection.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code A51.5 are found in the index:


Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • 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 with positive serology
  • Latent syphilis with positive serology
  • Serological relapse after treatment of latent early syphilis

Diagnostic Related Groups

The ICD-10 code A51.5 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2020 through 09/30/2021.

  • 867 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC
  • 868 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC
  • 869 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC

Convert A51.5 to ICD-9

  • 092.0 - Early syph latent relaps (Approximate Flag)
  • 092.9 - Early syphil latent NOS (Approximate Flag)

Code Classification

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

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Syphilis

Syphilis is a sexually transmitted disease caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy.

The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it, syphilis usually causes a non-itchy skin rash, often on your hands and feet. Many people do not notice symptoms for years. Symptoms can go away and come back.

The sores caused by syphilis make it easier to get or give someone HIV during sex. If you are pregnant, syphilis can cause complications, or you could lose your baby. In rare cases, syphilis causes serious health problems and even death.

Syphilis is easy to cure with antibiotics if you catch it early. Correct usage of latex condoms greatly reduces, but does not completely eliminate, the risk of catching or spreading syphilis. The most reliable way to avoid infection is to not have anal, vaginal, or oral sex.

Centers for Disease Control and Prevention

  • Condom Fact Sheet in Brief (Centers for Disease Control and Prevention)
  • Congenital syphilis (Medical Encyclopedia)
  • CSF-VDRL test (Medical Encyclopedia)
  • FTA-ABS test (Medical Encyclopedia)
  • Neurosyphilis (Medical Encyclopedia)
  • RPR test (Medical Encyclopedia)
  • Syphilis (Centers for Disease Control and Prevention)
  • Syphilis - primary (Medical Encyclopedia)
  • Syphilis and MSM (Men Who Have Sex with Men) (Centers for Disease Control and Prevention)
  • VDRL test (Medical Encyclopedia)

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