Boat as the place of occurrence of the external cause

This code indicates that an injury or adverse event occurred while the patient was on a boat. This includes any type of watercraft, such as a yacht, fishing boat, canoe, or raft, and specifies the location where the external cause of the injury took place.

Apply this code when documenting injuries sustained during activities on a boat, such as falls, drowning incidents, or accidents involving boat machinery. It is used in conjunction with an external cause code (e.g., W01 for fall on same level) and the primary injury code.

• Always sequence this as a secondary code following the external cause code and the primary injury code.
• Distinguish between injuries occurring on a boat versus those occurring from a boat (e.g., falling out of a boat into water).
• Consider other relevant place of occurrence codes if the event involved multiple locations (e.g., falling from a boat onto a dock).