If you have not used your Health Code for a long time and your actual health status does not match, you can click on the "Modify" button in the upper right corner of the Health Code to re-fill in your personal health status information.

A yellow code will be generated if the two questions of whether you are in home isolation and whether your current health status is abnormal are filled in incorrectly when a citizen applies for a health code. In this case, the incorrect information can be corrected, and the yellow code will change to a green code after the information is corrected. The information can only be changed once a day, so please be sure to fill out the information carefully to avoid making another mistake.

Features of the health code

Through the color of the health code, a person can quickly identify whether he or she has traveled through a province or city where the epidemic is more serious, and whether he or she has been in contact with an infected patient directly or indirectly. Then through big data analysis, it can directly target and find people who may be infected.

Health code is to draw on Zhejiang and other places to implement the health code model to help classify the orderly resumption of work and production experience, under the guidance of the State Council General Office of e-Government Office, Alipay based on China's integrated government services platform, the development of China's unified epidemic prevention and control of health code system.