The Audit Office of the Medical Insurance Bureau refers to the department in the Medical Insurance Bureau that is mainly responsible for regular or irregular audit, review and inspection of the medical insurance expense settlement of medical insurance insured units, medical institutions and insured individuals. Specific responsibilities are as follows:

1. Examine the medical service items, diagnosis and treatment behaviors, medication and charges of medical institutions, and find medical insurance violations such as overcharging and false diagnosis and treatment.

2. Review and audit the settlement of medical expenses of insured units and insured individuals to find out whether there are any irregularities such as false reimbursement.

3. Formulate and improve the control system of medical insurance expenses, standardize the use and management of medical insurance funds, and prevent the abuse and waste of medical insurance funds.