I had to go to the emergency room in December 2018, I was under a lot of pain and in a recent transition from insurance company to another. I gave them the wrong card thinking it was the right one. After that, I had to continue visiting the hospital and more bills were submitted,this time under the right insurance company. I didn’t hear about the bill from December until October 2019 at that time, we cleared the confusion and gave them the right insurance company I had at the time, but the insurance company denied the claim because bill was not submitted on time. Is there anything I can do? The hospital had the right information For other procedures after initial visit in December and they were able to submit those claims and were paid. I called the insurance company and they said that hospital need to appeal the denial or write off the charge. But hospital already sent the account to a law collection firm.