A33 vs P39
A33 (Tetanus neonatorum) compared with P39 (Other infections specific to the perinatal period), 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. P39 carries an Excludes2 note covering A33: “tetanus neonatorum (A33)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| A33Tetanus neonatorum | P39Other infections specific to the perinatal period | |
|---|---|---|
| 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 | Tetanus neonatorum is a billable ICD-10-CM diagnosis code (A33). | Other infections specific to the perinatal period is a non-billable ICD-10-CM category code (P39). |
| Use additional code | — | code to identify organism or specific infection |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources