My foreign ID card has never been out of Luoyang, so I can directly enter the Yu Fu code and follow the SMS reminder.

Yes, you need to follow the SMS reminder.

Now is the epidemic period. Big data knows better than ourselves where we have been. You don't usually send text messages for no reason. It should be that the base station of the operator has detected the signal that you have been to other places. According to the SMS reminder, it is generally necessary to make a nucleic acid, and if necessary, it can be separated as needed.

The allocation of codes to Henan Province follows the principle of "code allocation within the province, territorial control and convenient decoding". For those who return to Henan Province from outside the province, yellow codes will be uniformly allocated to Henan Health Codes (SMS reminders will be sent before allocating codes). Code distribution will enable the automatic transcoding function, and it will be carried out in the way of "automatic first, manual second". The nucleic acid test results are negative twice within three days, and the code will automatically turn green after being uploaded to the provincial comprehensive epidemic prevention and control management platform by the nucleic acid testing institution; If the code is assigned for more than 7 days, if there is no abnormality, it will automatically turn into a green code; If the green code is not automatically converted within the time limit, you can register through Alipay-Henan Health Code-Health Code transcoding, upload materials as required, and automatically transcode after the appeal is passed. "