(a) Offense defined.--Any person who negligently causes serious bodily injury to another person as the result of a violation of section 5502 (relating to operating watercraft under influence of alcohol or controlled substance) and who is convicted of violating section 5502 commits a felony of the second degree when the violation is the cause of the injury.
(b) Definition.--As used in this section, the term "serious bodily injury" means any bodily injury that creates a substantial risk of death or that causes serious permanent disfigurement or protracted loss or impairment of the function of any bodily member or organ.