P04.49 vs Z77
P04.49 (Newborn affected by maternal use of other drugs of addiction) compared with Z77 (Other contact with and (suspected) exposures hazardous to health), 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. P04.49 carries an Excludes2 note covering Z77: “newborn in contact with and (suspected) exposures hazardous to health not transmitted via placenta or breast milk (Z77.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. Z77 carries an Excludes2 note covering P04.49: “newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| P04.49Newborn affected by maternal use of other drugs of addiction | Z77Other contact with and (suspected) exposures hazardous to health | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Newborn affected by maternal use of other drugs of addiction is a billable ICD-10-CM diagnosis code (P04.49). | Other contact with and (suspected) exposures hazardous to health is a non-billable ICD-10-CM category code (Z77). |
| Includes | nonteratogenic effects of substances transmitted via placenta | contact with and (suspected) exposures to potential hazards to health |
| Code first | any current condition in newborn, if applicable | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources