There are several health code colors.

1. 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.

2. The green code represents the normal health status of the national government's epidemic prevention data verification service platform. The yellow code represents the health state that the epidemic prevention data verified by the national government service platform is normal, but the on-site temperature measurement is abnormal. Red team represents the health status of confirmed and suspected cases verified by epidemic prevention data of national government service platform.

3. red team is a confirmed case, a suspected case, a fever case and an asymptomatic infected person.