Person injured wh brd/alit from a 3- or 4- wheeled ATV, init

This code signifies an injury sustained by an individual during the act of getting on or off a three- or four-wheeled all-terrain vehicle. The injury occurs specifically during the boarding or alighting process, rather than during operation or a crash. This is designated as the initial encounter for the injury.

Apply this code when documentation clearly indicates an injury occurred as a patient was mounting or dismounting an ATV. This includes scenarios such as slipping while stepping onto the vehicle, falling off while attempting to disembark, or being struck by a part of the ATV during these actions. It is used for the very first time this injury is treated.

• Ensure the documentation specifies "boarding" or "alighting" from the ATV, not just "ATV accident."
• Verify the ATV is explicitly described as having 3 or 4 wheels.
• Confirm this is the initial treatment for the injury to justify the "A" seventh character.