ICD-10 Code A50.03 – Early congenital syphilitic pharyngitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A50.03 – Early congenital syphilitic pharyngitis
What it is
This code identifies early congenital syphilis affecting the pharynx in an infant or newborn. Use it when the record specifically documents pharyngeal involvement from congenital syphilis.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe pharyngeal inflammation or lesions in the setting of congenital syphilis, often alongside other early congenital findings.
When to use this code
Use A50.03 when the clinician documents early congenital syphilitic pharyngitis as the confirmed diagnosis. It is appropriate when the pharyngeal manifestation is part of a congenital syphilis presentation in a newborn or infant.
If the note only says congenital syphilis without pharyngeal involvement, check documentation before assigning this code. Code the documented site and timing as recorded.
Do not use for
Do not use this code for acquired syphilis, nonspecific pharyngitis, or congenital syphilis without pharyngeal involvement. Check documentation if the site is not clearly stated.
Coding tip
Assign this code only when the provider links pharyngitis to early congenital syphilis in the record.