| W50 | Accidental hit, strike, kick, twist, bite or scratch by another person |
| W50.0 | Accidental hit or strike by another person |
| W50.1 | Accidental kick by another person |
| W50.2 | Accidental twist by another person |
| W50.3 | Accidental bite by another person |
| W50.4 | Accidental scratch by another person |
| W51 | Accidental striking against or bumped into by another person |
| W52 | Crushed, pushed or stepped on by crowd or human stampede |
| W53 | Contact with rodent |
| W53.0 | Contact with mouse |
| W53.01 | Bitten by mouse |
| W53.09 | Other contact with mouse |
| W53.1 | Contact with rat |
| W53.11 | Bitten by rat |
| W53.19 | Other contact with rat |
| W53.2 | Contact with squirrel |
| W53.21 | Bitten by squirrel |
| W53.29 | Other contact with squirrel |
| W53.8 | Contact with other rodent |
| W53.81 | Bitten by other rodent |
| W53.89 | Other contact with other rodent |
| W54 | Contact with dog |
| W54.0 | Bitten by dog |
| W54.1 | Struck by dog |
| W54.8 | Other contact with dog |
| W55 | Contact with other mammals |
| W55.0 | Contact with cat |
| W55.01 | Bitten by cat |
| W55.03 | Scratched by cat |
| W55.09 | Other contact with cat |
| W55.1 | Contact with horse |
| W55.11 | Bitten by horse |
| W55.12 | Struck by horse |
| W55.19 | Other contact with horse |
| W55.2 | Contact with cow |
| W55.21 | Bitten by cow |
| W55.22 | Struck by cow |
| W55.29 | Other contact with cow |
| W55.3 | Contact with other hoof stock |
| W55.31 | Bitten by other hoof stock |
| W55.32 | Struck by other hoof stock |
| W55.39 | Other contact with other hoof stock |
| W55.4 | Contact with pig |
| W55.41 | Bitten by pig |
| W55.42 | Struck by pig |
| W55.49 | Other contact with pig |
| W55.5 | Contact with raccoon |
| W55.51 | Bitten by raccoon |
| W55.52 | Struck by raccoon |
| W55.59 | Other contact with raccoon |
| W55.8 | Contact with other mammals |
| W55.81 | Bitten by other mammals |
| W55.82 | Struck by other mammals |
| W55.89 | Other contact with other mammals |
| W56 | Contact with nonvenomous marine animal |
| W56.0 | Contact with dolphin |
| W56.01 | Bitten by dolphin |
| W56.02 | Struck by dolphin |
| W56.09 | Other contact with dolphin |
| W56.1 | Contact with sea lion |
| W56.11 | Bitten by sea lion |
| W56.12 | Struck by sea lion |
| W56.19 | Other contact with sea lion |
| W56.2 | Contact with orca |
| W56.21 | Bitten by orca |
| W56.22 | Struck by orca |
| W56.29 | Other contact with orca |
| W56.3 | Contact with other marine mammals |
| W56.31 | Bitten by other marine mammals |
| W56.32 | Struck by other marine mammals |
| W56.39 | Other contact with other marine mammals |
| W56.4 | Contact with shark |
| W56.41 | Bitten by shark |
| W56.42 | Struck by shark |
| W56.49 | Other contact with shark |
| W56.5 | Contact with other fish |
| W56.51 | Bitten by other fish |
| W56.52 | Struck by other fish |
| W56.59 | Other contact with other fish |
| W56.8 | Contact with other nonvenomous marine animals |
| W56.81 | Bitten by other nonvenomous marine animals |
| W56.82 | Struck by other nonvenomous marine animals |
| W56.89 | Other contact with other nonvenomous marine animals |
| W57 | Bitten or stung by nonvenomous insect and other nonvenomous arthropods |
| W58 | Contact with crocodile or alligator |
| W58.0 | Contact with alligator |
| W58.01 | Bitten by alligator |
| W58.02 | Struck by alligator |
| W58.03 | Crushed by alligator |
| W58.09 | Other contact with alligator |
| W58.1 | Contact with crocodile |
| W58.11 | Bitten by crocodile |
| W58.12 | Struck by crocodile |
| W58.13 | Crushed by crocodile |
| W58.19 | Other contact with crocodile |
| W59 | Contact with other nonvenomous reptiles |
| W59.0 | Contact with nonvenomous lizards |
| W59.01 | Bitten by nonvenomous lizards |
| W59.02 | Struck by nonvenomous lizards |
| W59.09 | Other contact with nonvenomous lizards |
| W59.1 | Contact with nonvenomous snakes |
| W59.11 | Bitten by nonvenomous snake |
| W59.12 | Struck by nonvenomous snake |
| W59.13 | Crushed by nonvenomous snake |
| W59.19 | Other contact with nonvenomous snake |
| W59.2 | Contact with turtles |
| W59.21 | Bitten by turtle |
| W59.22 | Struck by turtle |
| W59.29 | Other contact with turtle |
| W59.8 | Contact with other nonvenomous reptiles |
| W59.81 | Bitten by other nonvenomous reptiles |
| W59.82 | Struck by other nonvenomous reptiles |
| W59.83 | Crushed by other nonvenomous reptiles |
| W59.89 | Other contact with other nonvenomous reptiles |