The document outlines the 4 main principles of the nursing code of ethics: autonomy, beneficence, non-maleficence, and justice. Autonomy refers to a patient's right to make their own decisions. Beneficence means taking action that is for the patient's good. Non-maleficence means "do no harm." Justice means providing patients with fair and impartial treatment. The code of ethics guides nurses' behavior and decision-making.