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  6. 2026 ICD-10-CM Code A50

2026 ICD-10-CM Diagnosis Code A50

Congenital syphilis

ICD-10-CM Code:
A50
ICD-10 Code for:
Congenital syphilis
Is Billable?
Not Valid for Submission
Code Navigator:

A50 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of congenital syphilis. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Congenital syphilis

Non-specific codes like A50 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for congenital syphilis:

  • A50.0 for Early congenital syphilis, symptomatic

  • Use A50.01 for Early congenital syphilitic oculopathy

  • Use A50.02 for Early congenital syphilitic osteochondropathy

  • Use A50.03 for Early congenital syphilitic pharyngitis

  • Use A50.04 for Early congenital syphilitic pneumonia

  • Use A50.05 for Early congenital syphilitic rhinitis

  • Use A50.06 for Early cutaneous congenital syphilis

  • Use A50.07 for Early mucocutaneous congenital syphilis

  • Use A50.08 for Early visceral congenital syphilis

  • Use A50.09 for Other early congenital syphilis, symptomatic

  • Use A50.1 for Early congenital syphilis, latent

  • Use A50.2 for Early congenital syphilis, unspecified

  • A50.3 for Late congenital syphilitic oculopathy

  • Use A50.30 for Late congenital syphilitic oculopathy, unspecified

  • Use A50.31 for Late congenital syphilitic interstitial keratitis

  • Use A50.32 for Late congenital syphilitic chorioretinitis

  • Use A50.39 for Other late congenital syphilitic oculopathy

  • A50.4 for Late congenital neurosyphilis [juvenile neurosyphilis]

  • Use A50.40 for Late congenital neurosyphilis, unspecified

  • Use A50.41 for Late congenital syphilitic meningitis

  • Use A50.42 for Late congenital syphilitic encephalitis

  • Use A50.43 for Late congenital syphilitic polyneuropathy

  • Use A50.44 for Late congenital syphilitic optic nerve atrophy

  • Use A50.45 for Juvenile general paresis

  • Use A50.49 for Other late congenital neurosyphilis

  • A50.5 for Other late congenital syphilis, symptomatic

  • Use A50.51 for Clutton's joints

  • Use A50.52 for Hutchinson's teeth

  • Use A50.53 for Hutchinson's triad

  • Use A50.54 for Late congenital cardiovascular syphilis

  • Use A50.55 for Late congenital syphilitic arthropathy

  • Use A50.56 for Late congenital syphilitic osteochondropathy

  • Use A50.57 for Syphilitic saddle nose

  • Use A50.59 for Other late congenital syphilis, symptomatic

  • Use A50.6 for Late congenital syphilis, latent

  • Use A50.7 for Late congenital syphilis, unspecified

  • Use A50.9 for Congenital syphilis, unspecified

Code Classification

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

Clinical Information

  • Congenital Syphilis

    a life-threatening bacterial infection of the newborn caused by treponema pallidum. it is transmitted to the infant from a mother with syphilis through the placenta during pregnancy. signs and symptoms include irritability, fever, failure to thrive, saddle nose, cutaneous rash, and pneumonia.

  • Late Latent Congenital Syphilis

    the occurrence of syphilis symptoms in individuals who were infected before or during birth and have not exhibited signs of the disease for over a year.

Patient Education


Syphilis

Syphilis is a sexually transmitted infection (STI) 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. If your or your partner is allergic to latex, you can use polyurethane condoms. The most reliable way to avoid infection is to not have anal, vaginal, or oral sex.

Centers for Disease Control and Prevention


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.