If part of your VA disability rating is due to combat injury, do you have to repay all of your separation pay before you receive benefits?

I was separated from the AF in the 2014 ERB, got separation pay, then was rated at 80%, with 50% of that being a direct result of an injury sustained during combat training. I have since repaid my separation pay and am receiving disability benefits. Since I'm not "combat injured", I didn't give it much thought until I heard the term "In the performance of duty under conditions Simulating War"