B20 vs P35
B20 (Human immunodeficiency virus [HIV] disease) compared with P35 (Congenital viral diseases), 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. P35 carries an Excludes2 note covering B20: “human immunodeficiency virus [HIV] disease (B20)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| B20Human immunodeficiency virus [HIV] disease | P35Congenital viral diseases | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99) | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) |
| Definition | Human immunodeficiency virus [HIV] disease is a billable ICD-10-CM diagnosis code (B20). | Congenital viral diseases is a non-billable ICD-10-CM category code (P35). |
| Includes | acquired immune deficiency syndrome [AIDS] AIDS-related complex [ARC] HIV infection, symptomatic | infections acquired in utero or during birth |
| Use additional code | code(s) to identify all manifestations of HIV infection | — |
| Code first | Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources