A50.03

What This Code Means

This is a throat infection caused by syphilis that a baby acquired from their mother before birth, occurring in the early stages of the disease. The infection affects the pharynx (throat area) and is part of early congenital syphilis manifestations.

Coding Tips

• •This code is specific to early congenital syphilis (typically occurring before age 2 years); verify the patient's age and that syphilis was acquired congenitally, not postnatally
• •Congenital syphilis codes require documentation of maternal syphilis history; ensure the medical record clearly indicates mother-to-child transmission and that this is the pharyngitis manifestation specifically