1. Click Alipay first, enter "health code" in the search bar, and click Search, as shown in the figure below.
2. Then in the page that opens, select the service city, as shown in the figure below.
3. Then, in the opened page, answer the health information, as shown in the figure below.
4. Then click Submit, as shown in the figure below.
5. Check again and click OK to submit, as shown in the figure below.