I would like to ask, when Beijing Hospital was hospitalized with a medical insurance card, the hospital temporarily took the medical insurance card and said it would be returned when it was discharged

I would like to ask, when Beijing Hospital was hospitalized with a medical insurance card, the hospital temporarily took the medical insurance card and said it would be returned when it was discharged. Is that so? Yes, most hospitals have social security cards. It is also for the convenience of hospitalization registration and discharge settlement, and once the social security card is registered in hospital, it will not be used in any medical institution before discharge settlement, because the social security card has been locked in the medical insurance system.