My mother had a stroke and a broken hip. She obviously had to be taken to the hospital in an ambulance. The ambulance employee incorrectly coded the form stating only "breathing problems". Medicare rejected the claim ($1,000 to go a few blocks). I appealed to Medicare by filling out and sending in the claim form. No response. Resubmitted the claim. No response. The fire dept responsible for ambulance service will not help. They will NOT resubmit the claim. NOW what can I do?