Related Rule
Australia
Practice Relating to Rule 26. Medical Activities
Australia’s Defence Force Manual (1994) provides:
Medical personnel, military or civilian, cannot be compelled to give preferential treatment to any sick or wounded person, except on medical grounds, nor may they be compelled to carry out any act incompatible with their humanitarian mission or medical ethics. No person may be punished for carrying out medical activities in accordance with medical ethics, regardless of the nationality or status of the person treated. 
Australia, Manual on Law of Armed Conflict, Australian Defence Force Publication, Operations Series, ADFP 37 – Interim Edition, 1994, § 967.
Australia’s LOAC Manual (2006) states:
Medical personnel, military or civilian, cannot be compelled to give preferential treatment to any sick or wounded person, except on medical grounds, nor may they be compelled to carry out any act incompatible with their humanitarian mission or medical ethics. No person may be punished for carrying out medical activities in accordance with medical ethics, regardless of the nationality or status of the person treated. 
Australia, The Manual of the Law of Armed Conflict, Australian Defence Doctrine Publication 06.4, Australian Defence Headquarters, 11 May 2006, § 9.72.
The LOAC Manual (2006) replaces both the Defence Force Manual (1994) and the Commanders’ Guide (1994).