The Veteran is granted a separate 10 percent disability rating for left lower extremity radiculopathy from April 4, 2013 to November 30, 2016. From December 1, 2016 onwards, the Veteran does not meet the criteria for a compensable disability rating.

The Veteran was granted an effective date of July 31, 2012, for TDIU and October 22, 2012, for service connection of left and right lower extremity radiculopathy.

The appeal for higher ratings and effective dates for various conditions was denied, with the exception of left and right lower extremity radiculopathy which were granted an earlier effective date.

The Veteran's cervical spine disability is granted a 30 percent rating, while the lumbar and lower extremity radiculopathy claims are denied. An earlier effective date for right lower extremity radiculopathy was granted, and TDIU based on single service-connected disability is remanded.

The Board granted service connection for a separate 50 percent initial rating for insomnia as secondary to tinnitus, and denied an increased rating for tinnitus. The Board also granted service connection for headache disability, low back disability, left lower extremity radiculopathy, cervical spine disability, and right upper extremity radiculopathy.