A50.9

Approximate Synonyms

• Congenital syphilis

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.

Details

• A50.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM A50.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of A50.9 – other international versions of ICD-10 A50.9 may differ.