Individuals pay a little, and the state subsidizes a little. Once hospitalized, you can currently reimburse up to 40,000 to 60,000 yuan. With the increase of individual payment period and the development of national economy, the reimbursement amount will increase year by year.
Maybe your city is among them, so that your mother can participate in medical insurance.
If it has not been implemented, it will be implemented soon and will be popularized in a year or two.
You can call the social security number "12333" to consult the local specific situation.