So out of pocket your potential responsibility is $2,000 to utilize the $10,000 protection. This money is not needed up front in most cases. As your being treated some doctors or facilities will make you pay a co-payment or deductible.
Many doctors are going to let the 20% be paid after settlement if you have retained a attorney, if you haven't, many doctors will write off that amount. You need to speak to your doctor about which arrangement they use.