The Basic Medical Insurance Drug List is divided into two categories: the "Class A List" and the "Class B List". The drugs in the "Class A Catalog" are those that are necessary for clinical treatment, widely used, effective, and moderately priced among similar drugs. The "Class A List" is uniformly set by the State and may not be adjusted by localities. Expenses incurred by basic medical insurance participants using drugs from the "Class A List" are paid in accordance with the provisions of basic medical insurance. Drugs on the "Class B List" are those that are available for clinical treatment, have good therapeutic effects, and are slightly more expensive than those on the "Class A List" in the same category. The basic medical insurance participants pay a certain percentage out of pocket, and then pay according to the provisions of the basic medical insurance.
From January 1, 2002, the use of "Class B drugs", the first personal out-of-pocket expenses are not charged. Drugs outside the catalog are paid for by the individual. At the initial stage of the health care reform, the original public health care reimbursement is allowed and is not included in the basic medical insurance scope of drugs, diagnostic and treatment items, medical services, facilities, by the unit in line with the principle of strict control, to develop their own corresponding subsidies.