Person outsd hv veh inj in clsn w nonmtr veh in traf, subs

This code signifies an individual who was positioned on the exterior of a large transport vehicle (e.g., bus, train, large truck) and sustained injuries during a subsequent encounter due to a collision with another non-motorized vehicle (e.g., bicycle, animal-drawn vehicle) in a traffic accident. The "subsequent encounter" indicates that the patient is receiving follow-up care for injuries sustained in the initial event.

This code is appropriate for documenting ongoing treatment, such as follow-up appointments, physical therapy, or wound care, for injuries sustained by a person riding on the outside of a heavy transport vehicle involved in a traffic accident with a non-motor vehicle. It applies when the initial injury has already been coded and the patient is returning for further management.

• Ensure the patient was physically located on the outside of the heavy transport vehicle at the time of the collision.
• Verify that the collision involved a non-motor vehicle and occurred in a traffic accident context.
• Confirm this is a subsequent encounter for care related to the initial injury, not the initial presentation.