W16Fall, jump or diving into water

W16 is the ICD-10-CM diagnosis code for fall, jump or diving into water. It belongs to block W00-W19 (slipping, tripping, stumbling and falls) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: W16.0 (pool), W16.1 (water), W16.2 (water), W16.3 (water), W16.4 (water), W16.5 (pool), W16.6 (water), W16.7 (boat) and 2 more.

Don't report W16 together with the conditions in its Excludes1 note: accidental non-watercraft drowning and submersion not involving fall (W65-W74), effects of air pressure from diving (W94.-), fall into water from watercraft (V90-V94) and hitting an object or against bottom when falling from watercraft (V94.0).

The conditions in its Excludes2 note aren't part of W16, but may be coded alongside it if the patient has both: striking or hitting diving board (W21.4).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.