Did the employer inquire about the hospitalization medical insurance through social security?

The unit can't find your illness when you go to the social security bureau, and the social security bureau won't let you check it.

If medical insurance expenses of employees need to be reimbursed manually, you need to submit the prescription and diagnosis certificate to the social security bureau for reimbursement, and the personnel manager can see your illness from the diagnosis certificate.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.