1, Qifubiaozhun: medical expenses below a certain amount are not reimbursed by medical insurance, which is called Qifubiaozhun. The threshold for outpatient co-ordination is relatively high, ranging from several hundred to several thousand yuan. Only medical expenses that exceed the threshold are reimbursed by medical insurance.

2. The affordability of the medical insurance fund: The medical insurance fund is a special fund raised by the government or institutions to pay the medical expenses of the insured. The medical insurance fund needs to be controlled in an affordable range to ensure its effective operation and sustainability. The annual maximum payment limit is set to limit the expenditure of the medical insurance fund and avoid the abuse and waste of the fund.