ICD-10 Code A50.08 – Early visceral congenital syphilis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A50.08 – Early visceral congenital syphilis
What it is
This code identifies early congenital syphilis affecting internal organs in a newborn or infant. It indicates organ involvement from a congenital Treponema pallidum infection.
Clinical signs
Clinical features vary; refer to documentation. Visceral disease may involve the liver, spleen, lungs, or other organs, and may appear with systemic illness in early infancy.
When to use this code
Use A50.08 when the record documents early congenital syphilis with visceral or organ involvement. Apply it for confirmed congenital infection when the clinician specifies internal organ disease rather than only mucocutaneous findings.
If the chart does not clearly identify visceral involvement, check documentation before coding. Use the most specific congenital syphilis code supported by the provider’s diagnosis.
Do not use for
Do not use this code for late congenital syphilis or for congenital syphilis limited to skin, mucous membranes, or other nonvisceral findings. Check documentation if the site of involvement is unclear.
Coding tip
Look for explicit wording such as “visceral,” “organ involvement,” or named organ disease to support A50.08.