If your insurance company pays for a hospital stay and you are left with a copay you can't afford what can you do?

contact their accounts receivable department and make plans for a payment plan. they will not go away if you ignore them and they will hound you relentlessly for their payment. start with small payments - $20 a month - try to get it paid down as quick as possible and don't miss any agreed on payments. medical will ruin your credit report if you let it get out of control.