Health codes in most areas are divided into three types: green code, yellow code and red code, but some areas have purple code and orange code. The green code can pass freely, and the yellow code must be isolated for 7 days to become a green code with normal body temperature. Red team is a confirmed case, suspected case, fever case and asymptomatic infected person. There are also purple codes in some areas, which belong to high-risk personnel, such as confirmed patients, suspected patients and asymptomatic infected people with positive nucleic acid test. The orange code belongs to close contacts or suspected contacts. There are no symptoms or abnormal records in the national database. The national system will automatically update the data for you, and the identity code will be automatically converted into a green code. First, individuals do not need to apply for and show the health codes of the places of visit through traffic checkpoints, residential quarters, stations, airports, ports, passenger stations, ferries and open ports, hospitals, parks and other places with the information of "no abnormality" displayed by the national comprehensive government service platform's epidemic prevention and health codes or local health codes.
On March 23rd, 20021year, the National Health and Wellness Committee held a press conference on "Internet+Medical Health" and "Five Ones" service action. At the meeting, Mao Qun An, Director of the Planning Department of National Health Commission, introduced that National Health Commission will cooperate with the e-government office of the State Council Office and other departments through mutual recognition and sharing of basic data. The health coding management and service system was formulated, the coding and transcoding rules were clarified, and the existing codes for epidemic prevention and control were cleaned up and standardized. In principle, a province (autonomous region, municipality) only keeps one health code for overall construction, and basically realizes "one code for all health codes" throughout the country.