A50 vs P38

A50 (Congenital syphilis) compared with P38 (Omphalitis of newborn), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. P38 carries an Excludes2 note covering A50: “congenital syphilis (A50.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	A50Congenital syphilis	P38Omphalitis of newborn
Billing status	Non-billable header Report instead: A50.01, A50.02, A50.03, A50.04, A50.05	Non-billable header Report instead: P38.1, P38.9
Classification	A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99)	P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96)
Definition	Congenital syphilis is a non-billable ICD-10-CM category code (A50).	Omphalitis of newborn is a non-billable ICD-10-CM category code (P38).

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources