The designated hospital of Beijing Union University is the Third Hospital of Beijing Medical University, but the Sino-Japanese Friendship Hospital you mentioned is not.

University-level public health care. The process is to receive medical treatment in the school infirmary. If the illness is serious and can't be solved, you will be given a referral form, and then you can go to the hospital for referral.

If the illness is too urgent to go to the infirmary for referral, you can ask the hospital to issue an emergency certificate.

After seeing the doctor, take the documents, wait for the infirmary to inform the reimbursement date, and go to the reimbursement on the same day.

High school cards are useless during college.