Beijing social security card can be used in Tianjin after being associated.

Legal analysis: hospitals that have signed cooperation agreements with Beijing Social Security within the scope of Tianjin medical insurance, as individual designated hospitals, can be reimbursed directly with social security cards. For those who do not belong to the designated hospitals and are referred to the local hospitals in Beijing for emergency treatment, they can return to the social security center for manual reimbursement with the hospital invoice. Those who do not belong to the above situation and seek medical treatment directly cannot be reimbursed.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 4 Employers and individuals in People's Republic of China (PRC) shall pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Fifth people's governments at or above the county level shall incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.

The state supports social insurance through preferential tax policies.