| Z57 | Occupational exposure to risk factors | NON-BILLABLE CODE |
| Z57.0 | Occupational exposure to noise | BILLABLE CODE |
| Z57.1 | Occupational exposure to radiation | BILLABLE CODE |
| Z57.2 | Occupational exposure to dust | BILLABLE CODE |
| Z57.3 | Occupational exposure to other air contaminants | NON-BILLABLE CODE |
| Z57.31 | Occupational exposure to environmental tobacco smoke | BILLABLE CODE |
| Z57.39 | Occupational exposure to other air contaminants | BILLABLE CODE |
| Z57.4 | Occupational exposure to toxic agents in agriculture | BILLABLE CODE |
| Z57.5 | Occupational exposure to toxic agents in other industries | BILLABLE CODE |
| Z57.6 | Occupational exposure to extreme temperature | BILLABLE CODE |
| Z57.8 | Occupational exposure to other risk factors | BILLABLE CODE |
| Z57.9 | Occupational exposure to unspecified risk factor | BILLABLE CODE |
