What is the use of Shenzhen's second-class social security? How to reimburse Shenzhen Second Social Security?

Shenzhen's second-class social security is hospitalization medical insurance, and the insured can only use it when he is hospitalized.

Shenzhen social security is divided into first, second and third grades, mainly medical insurance. The first gear is comprehensive medical insurance. Usually, social security cards can be used to register and buy medicines. The second file is hospitalization medical insurance, which can only be used if you are hospitalized; The third gear is for workers who can only use it in hospitals, which is worse than the second gear.