V64.4: Occupant of heavy transport vehicle injured in collision with heavy transport vehicle or bus : person injured while boarding or alighting

The condition described by code V64.4 involves injuries sustained by an occupant of a heavy transport vehicle involved in a collision with another heavy transport vehicle or bus, specifically while boarding or alighting. This is typically associated with vehicular accidents, and may encompass a diverse range of physical injuries depending on the severity of the incident, from minor lacerations and fractures to more critical conditions such as head trauma or internal injuries. Presentation of symptoms would largely be dependent on the exact nature of the injuries sustained, but may include pain, bruising, swelling, loss of function in a certain body part, or altered state of consciousness in case of severe head injuries. Given the context, these incidents are likely to occur in a traffic environment, either on the road or in designated vehicle stations or terminals.