Participants who have gone through the procedure of confirming medical treatment in a different place are only allowed to seek medical treatment at the recognized designated medical institutions in a different place. Outpatient expenses cannot be reimbursed, and hospitalized medical fees must be paid in cash by the individual first, and then reimbursed at the place of insurance in accordance with the regulations after discharge with the "Referral Approval Form", the medical records of the hospital in which the patient was diagnosed and treated abroad, the discharge summary, the certificate of medical records of the employees' medical insurance, the detailed list of expenses, and the settlement bill of the medical fees. Therefore, your grandfather can't be reimbursed in Changsha, he must go back to Yiyang for reimbursement, and the reimbursement rate is generally lower than that of the local reimbursement in Yiyang, but of course not too much different.
The amount of reimbursement = reimbursement base * reimbursement rate, not that all the expenses can be reimbursement base, for example, if the cost of 30,000 yuan, and 10,000 yuan of imported medicines or medical equipment equipment, the local out-of-pocket starting line is 2,000 yuan, then you must remove this 12,000 yuan, 18,000 yuan as the base of the reimbursement. As for the reimbursement rate, the policy varies from place to place, depending on the local policy.
It is recommended that you directly consult the medical insurance center in Yiyang to confirm the procedures and policies to avoid unnecessary losses.