serious physical pain or suffering
(D)the term “serious physical pain or suffering” shall be applied for purposes of paragraph (1)(B) as meaning bodily injury that involves— (i)a substantial risk of death; (ii)extreme physical pain; (iii)a burn or physical disfigurement of a serious nature (other than cuts, abrasions, or bruises); or (iv)significant loss or impairment of the function of a bodily member, organ, or mental faculty; and