Legal analysis: 1. Drug reimbursement for basic medical insurance. Drugs included in the scope of basic medical insurance payment are divided into Class A and Class B.. Class A drugs refer to drugs that are basically unified throughout the country and can ensure the basic needs of clinical treatment. The expenses of such drugs are included in the scope of payment of the basic medical insurance fund, and the expenses are paid according to the payment standard of basic medical insurance. The list of Class B drugs shall be adjusted by the provinces, autonomous regions and municipalities directly under the Central Government according to their own conditions. Such drugs shall be paid by employees at a certain proportion before being included in the coverage of the basic medical insurance fund and paid according to the basic medical insurance payment standard. The following drugs are not included in the basic medical insurance reimbursement: (1) drugs that mainly play a nourishing role; (2) Some animals and animal organs that can be used as medicine, dried (watered) fruits; (3) Various wine preparations brewed with Chinese herbal medicines and Chinese herbal pieces; (4) Fruity preparations and oral effervescent agents in various medicines; (5) Blood products and protein products (except for special indications and first aid and rescue); (6) Other drugs that are not paid by the basic medical insurance fund as stipulated by the administrative department of social insurance. 2, the basic medical insurance treatment project reimbursement. The basic medical insurance diagnosis and treatment items should meet the following conditions: (1) Clinical diagnosis and treatment must be safe and effective, and the cost is appropriate; (2) The price department has set the charging standard; (3) within the scope of designated medical services provided by designated medical institutions for the insured.

Legal basis: Social Insurance Law of the People's Republic of China

Article 26 The treatment standards of basic medical insurance for employees, new rural cooperative medical care and basic medical insurance for urban residents shall be implemented in accordance with state regulations.

article 28 medical expenses that meet the basic medical insurance drug list, diagnosis and treatment items, medical service facilities standards, and emergency and rescue shall be paid from the basic medical insurance fund in accordance with state regulations.

article 29 the part of the medical expenses of the insured that should be paid by the basic medical insurance fund shall be directly settled by the social insurance agency, medical institutions and pharmaceutical trading units. The administrative department of social insurance and the administrative department of health shall establish a settlement system for medical expenses in different places to facilitate the insured to enjoy the basic medical insurance benefits.