The internal expenses of medical insurance as a whole refer to the medical expenses paid by the medical insurance fund within the scope of medical insurance as a whole. These expenses refer to the related expenses of medical services such as treatment, examination, operation, hospitalization and outpatient service within the scope of medical security paid by the medical insurance fund.

As one of the core contents of the national medical insurance policy, medical insurance aims to improve the people's medical security level and ensure the medical expenses of poor and seriously ill patients. The medical insurance fund comes from the contributions of employees, enterprises and the state, and has a strong financial guarantee ability.

With the continuous improvement of the national medical insurance policy, the internal expenses of medical insurance are gradually extended to basic medical insurance, industrial injury insurance, maternity insurance and other medical security services, further improving the people's medical security level. At the same time, we should also strengthen the management and supervision of medical insurance funds to prevent the waste and profligacy of medical insurance funds.