Legal analysis: Generally, in-hospital blood transfusion is not reimbursed, because there are certain differences in medical insurance policies in different places. At present, blood expenses and blood mutual aid funds in general hospitals are not reimbursed, and blood transfusion materials are reimbursed according to regulations after 1% is borne by individuals, and blood transfusion fees can be reimbursed normally, of which blood expenses and blood mutual aid funds account for the vast majority, which means that blood transfusion expenses can be reimbursed very little.

legal basis article 26 of the social insurance law of the people's Republic of China

social insurance agencies, social insurance premium collection agencies, social insurance fund investment and operation agencies, institutions that open social insurance fund special accounts, special account management banks and their staff members have the following illegal situations, and the social insurance administrative department shall investigate and deal with them in accordance with the provisions of article 91 of the social insurance law.

article 28 in areas where social insurance agencies collect social insurance premiums, social insurance administrative departments shall perform the duties of relevant administrative departments as stipulated in article 63 of the social insurance law.