Mo. Rev. Stat. § 190.606
The following persons and entities shall not be subject to civil, criminal, or administrative liability and are not guilty of unprofessional conduct for the following acts or omissions that follow discovery of an outside the hospital do-not-resuscitate identification upon a patient, or upon being presented with an outside the hospital do-not-resuscitate order from Missouri, another state, the District of Columbia, or a territory of the United States; provided that the acts or omissions are done in good faith and in accordance with the provisions of sections 190.600 to 190.621 and the provisions of an outside the hospital do-not-resuscitate order executed under sections 190.600 to 190.621:
(L. 2007 H.B. 182, A.L. 2020 H.B. 1682)