The Board remands the claims for increased ratings in excess of 10 percent for degenerative changes of the lumbar spine, left upper extremity carpal tunnel syndrome, and right upper extremity carpal tunnel syndrome to ensure that VA's responsibilities under the duty to assist are followed.

The Board granted a 100 percent evaluation for PTSD with major depressive disorder, generalized anxiety, and alcohol-use disorder, as well as 40 percent and 30 percent evaluations for right upper extremity (dominant) carpal tunnel syndrome and left upper extremity carpal tunnel syndrome respectively, effective June 26, 2019. The Board also granted special monthly compensation under 38 U.S.C. § 1114(s).

The Board granted service connection for radiculopathy of the right lower extremity as secondary to the Veteran's service-connected degenerative changes of the lumbar spine and increased the disability rating for the lumbar spine to 20 percent effective August 18, 2023.

The appeal of the proposed disability rating reduction for PTSD was dismissed due to it not constituting an adverse final decision that may be appealed.

The Board remands the claim for a back disability to verify the Veteran's period(s) of active duty for training (ACDUTRA), inactive duty for training (IDT), and/or active duty for special work (ADSW) from September 2013 to August 2021, and to obtain a VA examination.