A little background, active duty Army MAR 98 to JUL 07. 3 deployments to the sand box. Joined the AZ National Guard in NOV 10. Back surgery in SEP 17. P3 profile in MAR 19, followed by an unfit for duty letter from state. I had put in a VA claim in NOV 18 and didn't receive a rating until FEB 20. The VA determined my back was duty related based on my active duty records, but I had no Guard LOD for my back. The guard said it was not duty related. When I did my election in JUL 19 I elected non duty related because I didn't have any VA rating or LOD from the guard. I received my DA199 today and it says they are discharging me because of my back and determined it was non duty related. My question is can the VA go back and reduce my rating because the PEB determined it was non duty related? I received %100 total and permanent rating.