If tongji hospital's second hospitalization is caused by the same disease, and he is hospitalized again within 30 days after discharge, there is no need to apply for medical insurance reimbursement again. Because the medical insurance system will automatically compare the previous diagnosis information and reimbursement records with this hospitalization, if it meets the corresponding regulations, it can be directly reimbursed. However, if the second hospitalization is due to a different disease, or if you are hospitalized again 30 days after discharge, you need to apply for medical insurance reimbursement again. For the specific operation process, please consult the medical insurance window in tongji hospital or the staff of relevant medical insurance institutions.