| W85 | Exposure to electric transmission lines |
| W86 | Exposure to other specified electric current |
| W86.0 | Exposure to domestic wiring and appliances |
| W86.1 | Exposure to industrial wiring, appliances and electrical machinery |
| W86.8 | Exposure to other electric current |
| W88 | Exposure to ionizing radiation |
| W88.0 | Exposure to X-rays |
| W88.1 | Exposure to radioactive isotopes |
| W88.8 | Exposure to other ionizing radiation |
| W89 | Exposure to man-made visible and ultraviolet light |
| W89.0 | Exposure to welding light (arc) |
| W89.1 | Exposure to tanning bed |
| W89.8 | Exposure to other man-made visible and ultraviolet light |
| W89.9 | Exposure to unspecified man-made visible and ultraviolet light |
| W90 | Exposure to other nonionizing radiation |
| W90.0 | Exposure to radiofrequency |
| W90.1 | Exposure to infrared radiation |
| W90.2 | Exposure to laser radiation |
| W90.8 | Exposure to other nonionizing radiation |
| W92 | Exposure to excessive heat of man-made origin |
| W93 | Exposure to excessive cold of man-made origin |
| W93.0 | Contact with or inhalation of dry ice |
| W93.01 | Contact with dry ice |
| W93.02 | Inhalation of dry ice |
| W93.1 | Contact with or inhalation of liquid air |
| W93.11 | Contact with liquid air |
| W93.12 | Inhalation of liquid air |
| W93.2 | Prolonged exposure in deep freeze unit or refrigerator |
| W93.8 | Exposure to other excessive cold of man-made origin |
| W94 | Exposure to high and low air pressure and changes in air pressure |
| W94.0 | Exposure to prolonged high air pressure |
| W94.1 | Exposure to prolonged low air pressure |
| W94.11 | Exposure to residence or prolonged visit at high altitude |
| W94.12 | Exposure to other prolonged low air pressure |
| W94.2 | Exposure to rapid changes in air pressure during ascent |
| W94.21 | Exposure to reduction in atmospheric pressure while surfacing from deep-water diving |
| W94.22 | Exposure to reduction in atmospheric pressure while surfacing from underground |
| W94.23 | Exposure to sudden change in air pressure in aircraft during ascent |
| W94.29 | Exposure to other rapid changes in air pressure during ascent |
| W94.3 | Exposure to rapid changes in air pressure during descent |
| W94.31 | Exposure to sudden change in air pressure in aircraft during descent |
| W94.32 | Exposure to high air pressure from rapid descent in water |
| W94.39 | Exposure to other rapid changes in air pressure during descent |
| W99 | Exposure to other man-made environmental factors |