Would I still be approved for Breast reduction when my surgeon resubmit my documents to the insurance again?

I was approved for breast reduction on my second try with a different surgeon but I had to change my plans & get it done in Fall 2017. I don't understand how I was denied the first time ( w/different DR). Now I'm scared when my surgeon submit it again I would get denied. What are the chances of me getting denied again? Would I still get approved since my doctor need to resubmit the documents b/c it will expired?

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