Legal analysis: Default credit card medical insurance card will not be frozen, but it will be blacklisted. Dishonest people mainly freeze bank deposits, houses, expensive paintings and antique cars, and restrict high-consumption travel and high-speed rail. A credit card is a credit certificate issued by a commercial bank or a credit card company to eligible consumers. The form of credit card is a card with the name of the issuing bank, expiration date, number and cardholder's name printed on the front. Consumers with credit cards can go to specialized commercial service departments for shopping or spending.

Legal basis: Interpretation of the Supreme People's Court and the Supreme People's Procuratorate on Several Issues Concerning the Specific Application of Laws in Handling Criminal Cases of Impairment of Credit Card Management Article 4 If a cardholder overdraws beyond the prescribed limit or time limit for the purpose of illegal possession and fails to return it for more than 3 months after repeated reminders from the issuing bank, it shall be deemed as "malicious overdraft".