The Veteran's left upper extremity radiculopathy has been rated at 30 percent since January 8, 2013. The disability is characterized by severe pain and mild organic changes along the C6 distribution, including decreased sensation down the arm and into the hand and fingers, intermittent weakness and decreased strength, and intermittent decreased or increased reflexes.

The Veteran's erectile dysfunction is likely due to his service-connected lumbar spine and radiculopathy conditions, with tramadol use possibly causing the condition by October 25, 2012. The effective date for ED will be remanded.,Due to the inextricably intertwined nature of the issues, including the need to determine if tramadol caused ED prior to August 30, 2013, the SMC issue is also remanded.

The Board denied a rating in excess of 30 percent for the Veteran's left upper extremity radiculopathy, finding that the evidence did not show severe incomplete paralysis.

The Veteran's service connection claims for erectile dysfunction and voiding dysfunction have been denied due to the lack of evidence linking these conditions to his in-service exposure.,The remaining service connection claims (for bilateral feet, ankles, hip, wrist, cervical spine, upper extremity radiculopathy, psychiatric disorder, GERD, sleep apnea, and hypertension) are remanded for further development.

An effective date of July 1, 2020 is granted for Total Disability Rating based on Individual Unemployability (TDIU).,An effective date of July 1, 2020 is also granted for basic eligibility for Chapter 35 Dependents' Educational Assistance (DEA) due to permanent and total service-connected disabilities.