What's the difference between a social security card account and a second account?

Functional differences, differences in scope of use, etc.

1. Functional distinction: the primary account of social security card refers to the account used for individual social insurance payment and receiving relevant social insurance benefits. It is mainly used for personal social security payment and receiving social insurance benefits such as pension and medical care. The second-class account of social security card refers to the account used for personal medical insurance reimbursement and payment of medical expenses. It is mainly used for reimbursement and payment of personal medical expenses, including settlement of medical expenses such as outpatient service and hospitalization.

2. Differences in scope of use: Social security card accounts have a wide range of uses, which can cover multiple social insurance projects, such as pension, medical care, unemployment and work-related injuries. The second-class account of social security card is mainly used for medical insurance, reimbursement and payment of medical expenses.