| U |
| Underdosing of necessary drugs, medicaments or biological substances Y63.6 |
| Undetermined intent(contact) (exposure) |
| automobile collision Y32 |
| blunt object Y29 |
| drowning(submersion) (in) Y21.9 |
| bathtub Y21.0 |
| after fall Y21.1 |
| natural water(lake) (ocean) (pond) (river) (stream) Y21.4 |
| specified place NEC Y21.8 |
| swimming pool Y21.2 |
| after fall Y21.3 |
| explosive material Y25 |
| fall, jump or push from high place Y30 |
| falling, lying or running before moving object Y31 |
| fire Y26 |
| firearm discharge Y24.9 |
| airgun(BB) (pellet) Y24.0 |
| handgun(pistol) (revolver) Y22 |
| hunting rifle Y23.1 |
| larger Y23.9 |
| hunting rifle Y23.1 |
| machine gun Y23.3 |
| military Y23.2 |
| shotgun Y23.0 |
| specified type NEC Y23.8 |
| machine gun Y23.3 |
| military Y23.2 |
| shotgun Y23.0 |
| specified type NEC Y24.8 |
| Very pistol Y24.8 |
| hot object Y27.9 |
| fluid NEC Y27.2 |
| household appliance Y27.3 |
| specified object NEC Y27.8 |
| steam Y27.0 |
| tap water Y27.1 |
| vapor Y27.0 |
| jump, fall or push from high place Y30 |
| lying, falling or running before moving object Y31 |
| motor vehicle crash Y32 |
| push, fall or jump from high place Y30 |
| running, falling or lying before moving object Y31 |
| sharp object Y28.9 |
| dagger Y28.2 |
| glass Y28.0 |
| knife Y28.1 |
| specified object NEC Y28.8 |
| sword Y28.2 |
| smoke Y26 |
| specified event NEC Y33 |