Legal basis: Article 4 of the Notice on Further Promoting the Action of "Internet+Medical Health" and "Five Ones" Services issued by the National Health and Wellness Commission, the National Medical Insurance Bureau and state administration of traditional chinese medicine strengthens the "One Code Communication" in the industry. All localities should accelerate the application of residents' electronic health codes in accordance with the unified technical standards formulated and promulgated by the state, and strive to solve the problem of "one hospital and one card are incompatible" in medical and health services. Encourage all localities to promote the application of residents' electronic health codes as a starting point, promote the real-name registration system for medical treatment, explore the use of ID numbers as the mainstay, supplemented by other ID numbers, and strengthen the identification and use management of residents' health. We will promote residents' electronic health codes to replace medical and health institutions' medical cards, expand their use in medical services, public health services, chronic disease management, online information inquiry, health education, blood management and other fields, and gradually realize the multi-purpose of one code in the health industry. For the elderly, children and other groups, it is necessary to reasonably retain offline manual services and effectively solve the obstacles of intelligent technology.