| W20 | Struck by thrown, projected or falling object |
| W20.0 | Struck by falling object in cave-in |
| W20.1 | Struck by object due to collapse of building |
| W20.8 | Other cause of strike by thrown, projected or falling object |
| W21 | Striking against or struck by sports equipment |
| W21.0 | Struck by hit or thrown ball |
| W21.00 | Struck by hit or thrown ball, unspecified type |
| W21.01 | Struck by football |
| W21.02 | Struck by soccer ball |
| W21.03 | Struck by baseball |
| W21.04 | Struck by golf ball |
| W21.05 | Struck by basketball |
| W21.06 | Struck by volleyball |
| W21.07 | Struck by softball |
| W21.09 | Struck by other hit or thrown ball |
| W21.1 | Struck by bat, racquet or club |
| W21.11 | Struck by baseball bat |
| W21.12 | Struck by tennis racquet |
| W21.13 | Struck by golf club |
| W21.19 | Struck by other bat, racquet or club |
| W21.2 | Struck by hockey stick or puck |
| W21.21 | Struck by hockey stick |
| W21.210 | Struck by ice hockey stick |
| W21.211 | Struck by field hockey stick |
| W21.22 | Struck by hockey puck |
| W21.220 | Struck by ice hockey puck |
| W21.221 | Struck by field hockey puck |
| W21.3 | Struck by sports foot wear |
| W21.31 | Struck by shoe cleats |
| W21.32 | Struck by skate blades |
| W21.39 | Struck by other sports foot wear |
| W21.4 | Striking against diving board |
| W21.8 | Striking against or struck by other sports equipment |
| W21.81 | Striking against or struck by football helmet |
| W21.89 | Striking against or struck by other sports equipment |
| W21.9 | Striking against or struck by unspecified sports equipment |
| W22 | Striking against or struck by other objects |
| W22.0 | Striking against stationary object |
| W22.01 | Walked into wall |
| W22.02 | Walked into lamppost |
| W22.03 | Walked into furniture |
| W22.04 | Striking against wall of swimming pool |
| W22.041 | Striking against wall of swimming pool causing drowning and submersion |
| W22.042 | Striking against wall of swimming pool causing other injury |
| W22.09 | Striking against other stationary object |
| W22.1 | Striking against or struck by automobile airbag |
| W22.10 | Striking against or struck by unspecified automobile airbag |
| W22.11 | Striking against or struck by driver side automobile airbag |
| W22.12 | Striking against or struck by front passenger side automobile airbag |
| W22.19 | Striking against or struck by other automobile airbag |
| W22.8 | Striking against or struck by other objects |
| W23 | Caught, crushed, jammed or pinched in or between objects |
| W23.0 | Caught, crushed, jammed, or pinched between moving objects |
| W23.1 | Caught, crushed, jammed, or pinched between stationary objects |
| W24 | Contact with lifting and transmission devices, not elsewhere classified |
| W24.0 | Contact with lifting devices, not elsewhere classified |
| W24.1 | Contact with transmission devices, not elsewhere classified |
| W25 | Contact with sharp glass |
| W26 | Contact with knife, sword or dagger |
| W26.0 | Contact with knife |
| W26.1 | Contact with sword or dagger |
| W27 | Contact with nonpowered hand tool |
| W27.0 | Contact with workbench tool |
| W27.1 | Contact with garden tool |
| W27.2 | Contact with scissors |
| W27.3 | Contact with needle (sewing) |
| W27.4 | Contact with kitchen utensil |
| W27.5 | Contact with paper-cutter |
| W27.8 | Contact with other nonpowered hand tool |
| W28 | Contact with powered lawn mower |
| W29 | Contact with other powered hand tools and household machinery |
| W29.0 | Contact with powered kitchen appliance |
| W29.1 | Contact with electric knife |
| W29.2 | Contact with other powered household machinery |
| W29.3 | Contact with powered garden and outdoor hand tools and machinery |
| W29.4 | Contact with nail gun |
| W29.8 | Contact with other powered powered hand tools and household machinery |
| W30 | Contact with agricultural machinery |
| W30.0 | Contact with combine harvester |
| W30.1 | Contact with power take-off devices (PTO) |
| W30.2 | Contact with hay derrick |
| W30.3 | Contact with grain storage elevator |
| W30.8 | Contact with other specified agricultural machinery |
| W30.81 | Contact with agricultural transport vehicle in stationary use |
| W30.89 | Contact with other specified agricultural machinery |
| W30.9 | Contact with unspecified agricultural machinery |
| W31 | Contact with other and unspecified machinery |
| W31.0 | Contact with mining and earth-drilling machinery |
| W31.1 | Contact with metalworking machines |
| W31.2 | Contact with powered woodworking and forming machines |
| W31.3 | Contact with prime movers |
| W31.8 | Contact with other specified machinery |
| W31.81 | Contact with recreational machinery |
| W31.82 | Contact with other commercial machinery |
| W31.83 | Contact with special construction vehicle in stationary use |
| W31.89 | Contact with other specified machinery |
| W31.9 | Contact with unspecified machinery |
| W32 | Accidental handgun discharge and malfunction |
| W32.0 | Accidental handgun discharge |
| W32.1 | Accidental handgun malfunction |
| W33 | Accidental rifle, shotgun and larger firearm discharge and malfunction |
| W33.0 | Accidental rifle, shotgun and larger firearm discharge |
| W33.00 | Accidental discharge of unspecified larger firearm |
| W33.01 | Accidental discharge of shotgun |
| W33.02 | Accidental discharge of hunting rifle |
| W33.03 | Accidental discharge of machine gun |
| W33.09 | Accidental discharge of other larger firearm |
| W33.1 | Accidental rifle, shotgun and larger firearm malfunction |
| W33.10 | Accidental malfunction of unspecified larger firearm |
| W33.11 | Accidental malfunction of shotgun |
| W33.12 | Accidental malfunction of hunting rifle |
| W33.13 | Accidental malfunction of machine gun |
| W33.19 | Accidental malfunction of other larger firearm |
| W34 | Accidental discharge and malfunction from other and unspecified firearms and guns |
| W34.0 | Accidental discharge from other and unspecified firearms and guns |
| W34.00 | Accidental discharge from unspecified firearms or gun |
| W34.01 | Accidental discharge of gas, air or spring-operated guns |
| W34.010 | Accidental discharge of airgun |
| W34.011 | Accidental discharge of paintball gun |
| W34.018 | Accidental discharge of other gas, air or spring-operated gun |
| W34.09 | Accidental discharge from other specified firearms |
| W34.1 | Accidental malfunction from other and unspecified firearms and guns |
| W34.10 | Accidental malfunction from unspecified firearms or gun |
| W34.11 | Accidental malfunction of gas, air or spring-operated guns |
| W34.110 | Accidental malfunction of airgun |
| W34.111 | Accidental malfunction of paintball gun |
| W34.118 | Accidental malfunction of other gas, air or spring-operated gun |
| W34.19 | Accidental malfunction from other specified firearms |
| W35 | Explosion and rupture of boiler |
| W36 | Explosion and rupture of gas cylinder |
| W36.1 | Explosion and rupture of aerosol can |
| W36.2 | Explosion and rupture of air tank |
| W36.3 | Explosion and rupture of pressurized-gas tank |
| W36.8 | Explosion and rupture of other gas cylinder |
| W36.9 | Explosion and rupture of unspecified gas cylinder |
| W37 | Explosion and rupture of pressurized tire, pipe or hose |
| W37.0 | Explosion of bicycle tire |
| W37.8 | Explosion and rupture of other pressurized tire, pipe or hose |
| W38 | Explosion and rupture of other specified pressurized devices |
| W39 | Discharge of firework |
| W40 | Explosion of other materials |
| W40.0 | Explosion of blasting material |
| W40.1 | Explosion of explosive gases |
| W40.8 | Explosion of other specified explosive materials |
| W40.9 | Explosion of unspecified explosive materials |
| W42 | Exposure to noise |
| W42.0 | Exposure to supersonic waves |
| W42.9 | Exposure to other noise |
| W45 | Foreign body or object entering through skin |
| W45.0 | Nail entering through skin |
| W45.1 | Paper entering through skin |
| W45.2 | Lid of can entering through skin |
| W45.8 | Other foreign body or object entering through skin |
| W46 | Contact with hypodermic needle |
| W46.0 | Contact with hypodermic needle |
| W46.1 | Contact with contaminated hypodermic needle |
| W49 | Exposure to other inanimate mechanical forces |
| W49.0 | Item causing external constriction |
| W49.01 | Hair causing external constriction |
| W49.02 | String or thread causing external constriction |
| W49.03 | Rubber band causing external constriction |
| W49.04 | Ring or other jewelry causing external constriction |
| W49.09 | Other specified item causing external constriction |
| W49.9 | Exposure to other inanimate mechanical forces |