Determine the administrative regions above the prefecture level (including prefectures, cities, states, and leagues) as coordinating units, and counties (cities) with a certain population can also serve as coordinating units. All units and employees must participate in the basic medical insurance in the coordinating area in accordance with the territorial principle, implement unified policies, and implement unified collection, management and use of basic medical insurance funds. Those who participate in insurance in the overall planning area often cannot enjoy medical insurance benefits in other coordination areas except the municipal level. If they want to seek medical treatment, they need to register in another place.