10 disability refers to the amputation or functional loss of the interphalangeal joint at the distal end of any finger except the thumb. After fingertip skin grafting (hypertrophic scar above 1cm2). The skin graft area of palm and foot is more than 30%. Except the thumb, the other 3 ~ 4 fingers are missing. Except the big toe, any toes are missing. Chronic radiation-induced skin injury of one hand or both hands is above degree II.