The health code is output as static code analysis.

The first is the code conversion of health code "red team". When red team personnel are discharged from the hospital (out of the cabin), released from isolation, released from risk or their area is adjusted to low risk (the risk level is subject to the announcement), the health code will automatically turn into a green code.

The second is the transcoding of health code "yellow code" personnel. If it is a risk person or a key person who fails to do the nucleic acid test according to the regulations, 1 nucleic acid test should be conducted within 24 hours, and the second nucleic acid test should be conducted on the third day. If both nucleic acid tests are negative, it will automatically turn into a green code. On the seventh day of home health monitoring, the confirmed cases and asymptomatic infected persons discharged from the hospital (cabin) were tested for nucleic acid, and the nucleic acid test results were negative and then automatically turned into green codes. For those who exclude the risk of regional investigation, do not participate in nucleic acid testing and meet the requirements of local full-time nucleic acid testing, they can apply for manual transcoding.

The third type is code conversion by people who have been wrongly assigned red (yellow) codes. The local community (street) or work unit shall issue a certificate (seal) and provide the results of two negative nucleic acid tests in the past three days. After verification by the county-level CDC, it will be transcoded centrally.