BOOK II
SPECIAL PART
TITLE I
CRIMES AGAINST PEACE AND HUMANITY
CHAPTER II
WAR CRIMES
Article 125. War crimes against individuals
1. Any person who, within the context of an armed conflict of an international or noninternational nature, commits against a person protected by international humanitarian law :
k) Kills or wounds a combatant who, having laid down his or her arms or having no longer any means of defense, has unconditionally surrendered or otherwise been removed from combat ;
Denial of quarter - NIAC
Killing or wounding a combatant who has laid down his arms and surrendered at discretion - IAC
Killing or wounding a combatant who no longer has means of defence and has surrendered at discretion - IAC
Killing or wounding treacherously a combatant adversary - NIAC
EDIT.