The Social Insurance Law of the People's Republic of China
Article 2 The State establishes a social insurance system for basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance, maternity insurance and other social insurance, and guarantees the right of citizens to obtain material assistance from the State and society in accordance with the law in the event of old age, sickness, industrial injury, unemployment or maternity.
Article 28 Medical expenses that conform to the basic medical insurance drug catalog, diagnostic and treatment items, standards of medical service facilities, as well as emergency and rescue medical expenses shall be paid out of the basic medical insurance fund in accordance with state regulations.