Why can't Henan run Zhengzhou to apply for place health code?

No means no, there is no reason.

Recently, the epidemic situation in China has shown a multi-point, wide-ranging and frequent trend, and the situation of epidemic prevention and control is severe and complicated. In order to build a strong epidemic prevention and control front, Zhengzhou has further improved the grid and network intelligent management system, and cooperated with the information investigation of people entering (returning) Zhengzhou.

According to Document No.42 issued by Zhengzhou, people who enter (return to) Zhengzhou from outside the province should hold the nucleic acid test report within 48 hours, and then take the initiative to conduct nucleic acid testing within 24 hours after arriving in Zhengzhou.