Person outsd hv veh inj in clsn w rail trn/veh nontraf, subs

This code describes an injury sustained by an individual who was positioned on the exterior of a large transport vehicle (e.g., a bus, truck) when it collided with a train or railway vehicle. The incident occurred in a non-traffic setting, such as a rail yard or private property, and this specific encounter represents a follow-up visit for the injury.

Apply this code for subsequent encounters when a patient presents for ongoing care, such as wound checks, physical therapy, or medication management, following an injury from being on the outside of a heavy transport vehicle involved in a non-traffic railway collision. This would include scenarios where the patient was, for example, riding on the running board of a truck that was struck by a train in a private industrial area.

• Ensure the "D" seventh character is appropriate for a subsequent encounter, indicating active treatment or follow-up care.
• Verify that the patient was physically on the outside of the heavy transport vehicle, not inside it.
• Confirm the accident was a non-traffic event, distinguishing it from collisions occurring on public roadways.