The Veteran's claim for an increased rating for diabetes mellitus type II was denied, but the Board granted a higher rating of 20 percent effective January 9, 2012.,The Veteran also sought an earlier effective date for his service connection of diabetes mellitus type II. The Board found that new evidence (the Project CHECO Report) had been associated with the claims file after the original denial and granted a December 6, 2004 effective date.

The Board denied service connection for coronary atherosclerosis, hypertension, diabetes mellitus type II, and penile cancer as there was no evidence of a medical nexus between the Veteran's conditions and his military service.

The Board remands the matter to correct a pre-decisional duty-to-assist error, specifically to verify the Veteran's assertion of herbicide exposure while working on C-123 aircraft at Clark Air Base from May 1965 to November 1966.

The Board denied service connection for multiple conditions, including rheumatoid arthritis, right hip degenerative joint disease and rheumatoid arthritis with acetabular cyst status post right total hip replacement, osteoarthritis, psoriatic arthritis, hypertension, prostate cancer, diabetes mellitus type II, fever sores, and a compromised immune system, as the evidence did not support a finding of service connection for any of these conditions.

The Board granted earlier effective dates for the awards of service connection for various conditions associated with a stroke, including obstructive sleep apnea, depression, and diabetes mellitus type II.