Problems getting approved after given the go ahead from Meritain

[Kayparish24 0]

I have meritain and of course my doctors office checked to make sure I had coverage. They gave them a list of pre surgery procedures I would have to do such as ultrasound, endoscopy, nutrition classes, psych evaluation among other things prior to surgery, which I have done and has cost me almost 3 thousand dollars out of pocket to do. Now they denying me saying I’m not covered because obesity is not covered on my insurance plan and the code on my file is flagging it as obesity , but the doctor offered called prior ( 8 months ago ) to make sure. When I call meritain they told me to have them remove the code that means “obesity” and resubmit documents and it should be approved. My doctor office is saying there is no way to do that. I am highly disappointed and upset to have spent so much money and hopes for a surgery that was CHECKED prior to doing all of these other procedures just to be denied now that it’s time to schedule. Anyone with any knowledge , experience or advice on this? And how to get it approved with my insurance?? Is removing the code possible? The say no only because the same code is on other medical documents. I don’t know wether to fight with insurance or go do another doctor