Nanyue Medical Insurance cannot swipe its card in Hengdong probably because the pharmacies in Hengdong are not among the designated pharmacies. Medical insurance generally refers to medical insurance. Medical insurance generally refers to basic medical insurance, which is a social insurance system established to compensate workers for economic losses caused by disease risks. The medical insurance fund is established through the contributions of employers and individuals. After the insured person has medical expenses, the medical insurance institution will give certain economic compensation.