Соответствующая норма
Practice Relating to Rule 110. Treatment and Care of the Wounded, Sick and Shipwrecked
Section B. Distinction between the wounded and the sick
Ukraine’s IHL Manual (2004) states:
While performing their military duty, military medical personnel shall be guided by the generally recognized rules of international humanitarian law that oblige them … to render medical assistance during armed conflicts as necessary without any discrimination save for medical reasons. 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.7.1.