Prsn brd/alit other mtrcy injured in collision 2/3whl, subs

This code signifies an injury sustained by an individual who was either getting on or off a motorcycle (not a two- or three-wheeled motor vehicle) when it collided with another two- or three-wheeled motor vehicle. The "XD" suffix indicates that this is a subsequent encounter for the injury, meaning the patient is receiving follow-up care after the initial treatment.

Use this code for patients presenting for follow-up care, such as cast changes, wound checks, physical therapy, or medication adjustments, for injuries sustained in the described motor vehicle accident. This applies when the patient was a passenger or driver on a motorcycle and was in the process of mounting or dismounting at the time of impact with another two- or three-wheeled motor vehicle.

• Ensure the documentation clearly specifies the patient was boarding or alighting a motorcycle, not the other two- or three-wheeled vehicle involved.
• Verify that the encounter is for subsequent care of the injury, not the initial treatment.
• Always sequence this external cause code after the primary diagnosis code(s) for the specific injuries sustained.