V74: Bus occupant injured in collision with heavy transport vehicle or bus

V74.4: Bus occupant injured in collision with heavy transport vehicle or bus : person injured while boarding or alighting

Bus occupant injured in collision with heavy transport vehicle or bus (person injured while boarding or alighting) represents a categorization of vehicular accidents where an individual, either boarding or exiting a bus, sustains injuries in an accident involving a collision between the bus and a heavy transport vehicle or another bus. Injuries sustained in such accidents can vary from minor, such as bruises or sprains, to severe, including fractures, head injuries, or even potentially life-threatening conditions like internal bleeding. The severity is influenced by the force of collision, positioning of the individual at the time of impact, and other factors like age or existing health conditions. This classification does not dictate any specific symptoms as they may differ according to the particular injuries incurred. The progression of the condition depends on the severity of the injuries and timely medical intervention.