Person injured wh brd/alit from snowmobile, subs

This code indicates that a patient sustained an injury during the act of getting on or off a snowmobile, and this is not the initial visit for that injury. It specifies the mechanism of injury as related to snowmobile use, but specifically during the boarding or alighting process.

Use this code for follow-up encounters, such as subsequent office visits, cast changes, or physical therapy sessions, for an injury that occurred while the patient was either getting on or off a snowmobile. This code is appropriate after the initial treatment of the injury has been rendered.

• Always ensure the "D" seventh character is appropriate for a subsequent encounter.
• Pair this external cause code with an injury code (e.g., fracture, sprain) to fully describe the patient's condition.
• Verify documentation clearly states the injury occurred during boarding or alighting, not while operating or as a passenger.