A noncompensable evaluation is assigned from November 15, 2019. Service connection has been established from the day VA received your formal application on February 19, 2013. Your claim has been continuously pursued. They assigned a 0 percent evaluation and deferred for: VA medical opinion. I have a C&P exam this week. The question I'm asking if I get 10%-100% would they back pay me from March 2013 for what ever the percent they rate me at.