The Veteran's right upper extremity condition, including carpal tunnel syndrome and right elbow degenerative joint disease, is related to his active service. The Board granted the claim as reasonable doubt was resolved in favor of the Veteran.

The Veteran's bilateral hand disability, including exertional paresthesias and carpal tunnel syndrome, is granted as service-connected. The decision also remands the issue of service connection for diabetes mellitus.

The Veteran's claim for service connection for sinusitis has been denied as there is no persuasive evidence of its occurrence during or shortly after his military service.,The Veteran's appeal seeking an initial compensable rating for headaches was dismissed due to the lack of timely filing and concurrent election issues. The issue will be remanded for further consideration.,The Veteran's claim for service connection for diverticulosis/IBS (formerly GERD) has been dismissed as it is no longer pending at the Board level after a grant by the Board in February 2025, effective from January 23, 2021.,The Veteran's appeal seeking an initial compensable rating for CTS was dismissed due to concurrent election issues. The issue will be remanded for further consideration.,The Veteran's claim for service connection for GERD has been granted by the Board in February 2025, effective from January 23, 2021. The appeal is dismissed as this represents a full grant of the benefit sought on appeal.,The Veteran's claims for bilateral pes planus/plantar fasciitis and CTS were remanded due to concurrent election issues. These issues will be addressed in a future rating decision.,The Veteran's claim for service connection for TBI was not on appeal as it was predecisional error not to address the current rating issue. The issue is remanded for further consideration.,The Veteran's appeal seeking an earlier effective date for the award of a 50 percent rating for migraine headaches will be considered in a future decision.

The Board granted service connection for diabetes mellitus and related conditions, including diabetic neuropathy of the upper and lower extremities, erectile dysfunction, hypertension, retinopathy, and carpal tunnel syndrome (CTS), based on herbicide exposure during service.

The Board remands the claims for a right knee condition, left upper extremity condition, and right upper extremity condition to correct pre-decisional errors in the duty to assist.