Congenital syphilis
- A50 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2024 edition of ICD-10-CM A50 became effective on October 1, 2023.
- This is the American ICD-10-CM version of A50 – other international versions of ICD-10 A50 may differ.
The following code(s) above A50 contain annotation back-references
that may be applicable to A50:
- A00-B99 Certain infectious and parasitic diseases
- A50-A64 Infections with a predominantly sexual mode of transmission
Clinical Information
- 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.
- Syphilis acquired in utero and manifested by any of several characteristic tooth (hutchinson’s teeth) or bone malformations and by active mucocutaneous syphilis at birth or shortly thereafter. Ocular and neurologic changes may also occur.
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
Code annotations containing back-references to A50: