Z57 vs Z77.42
Z57 (Occupational exposure to risk factors) compared with Z77.42 (Contact with and (suspected) exposure to high-level blast overpressure), 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. Z77.42 carries an Excludes2 note covering Z57: “occupational exposure to risk factors (Z57.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Z57Occupational exposure to risk factors | Z77.42Contact with and (suspected) exposure to high-level blast overpressure | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Occupational exposure to risk factors is a non-billable ICD-10-CM category code (Z57). | — |
| Includes | — | contact with and (suspected) exposures to potential hazards to health Contact with and (suspected) exposure to HLB overpressure |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources