Prsn brd/alit hv veh injured in clsn w rail trn/veh, subs

This code signifies a follow-up encounter for an individual who sustained injuries while getting on or off a large transport vehicle (e.g., bus, truck) during a collision with a train or other railway vehicle. The initial injury has already been treated, and this visit addresses ongoing care, complications, or recovery.

Apply this code for subsequent visits related to injuries from the specified train-heavy transport collision, such as follow-up appointments for fracture healing, physical therapy for soft tissue injuries, or management of post-traumatic stress. It is appropriate when the patient is no longer in the acute phase of injury.

• Ensure the encounter is for a subsequent visit, not the initial treatment.
• Verify the mechanism of injury specifically involves a heavy transport vehicle and a railway train/vehicle.
• Confirm the patient was in the act of boarding or alighting at the time of the collision.