The Board has remanded the case for additional development to determine if the veteran's current lung condition and skin disorder are related to service, and whether he was exposed to stressors during his Vietnam service.

The Board dismissed the claims for service connection for chronic lymphocytic leukemia and a skin disorder due to an improper concurrent election. The effective dates for the lumbar spine disability, left lower extremity radiculopathies, and TDIU were denied as they did not meet the criteria for earlier effective dates.

The Board denied ratings in excess of 30 percent for bilateral foot disability, a rating in excess of 30 percent for left knee disability, and a rating in excess of 10 percent for lung disability. However, it granted an effective date of December 17, 2012, but no earlier, for the award service connection for limitation of extension of the left knee and left knee scar, and granted TDIU from January 17, 2013 to November 5, 2018.

The Board remands the issues of service connection for a bilateral foot disorder, an acquired psychiatric disorder, a skin disorder, and a sleep disorder, as well as an evaluation in excess of 10 percent for cystitis, due to the need for further development.

The Board granted a 20 percent rating for left foot injury residuals and left foot strain, but denied ratings in excess of 10 percent for hand/finger strains and service connection for a skin disorder.