The Board has remanded both the right eye disability and diabetes mellitus type 2 claims due to incomplete VA treatment records. A new examination is required for both conditions.

The Board remands the claims for service connection for various conditions, including diabetes mellitus type 2 and peripheral neuropathy, to further investigate potential exposure to herbicides during the Veteran's service in Korea.

The Board granted service connection for ischemic heart disease, diabetes mellitus type 2, and diabetic peripheral neuropathy of the lower extremities due to presumed exposure to herbicide agents during service.

The Board granted service connection for diabetes mellitus type 2, a heart condition as secondary to hypertension, and lower extremity vascular disability as secondary to diabetes mellitus type 2. The claims for peripheral neuropathy in all four extremities and amputation of toes were also granted as secondary to diabetes mellitus type 2. However, the claims for a neck condition, COPD, gall bladder removal, and chronic kidney disease were denied.

The Board remands the claims for service connection for the cause of death and Dependency and Indemnity Compensation (DIC) to correct a pre-decisional duty-to-assist error, as the VA examinations are inadequate.