The Board has remanded the case due to a duty to assist error, and will consider whether in-service exposure to aircraft fuels was a substantial or contributing factor in the Veteran's death.

The Veteran's cause of death was not caused by or related to his service-connected conditions, and there is no evidence that the causes of death were due to herbicide exposure. Service connection for cause of death is denied.

The Board granted service connection for posttraumatic stress disorder and tinnitus, while denying service connection for various other disabilities including the right ankle, left ankle, right shoulder, left shoulder, right knee, left knee, heart, respiratory, kidney, venous thrombosis, urinary hesitancy, acute metabolic encephalopathy, hypertension, obstructive sleep apnea, sleep disturbance, abdominal distension, atherosclerotic peripheral vascular disease, neurological disability, chronic fatigue syndrome, erectile dysfunction, stroke, skin disability, fibromyalgia, bilateral foot pain, hammer toes, tinea pedis, meningitis, GERD, traumatic brain injury, and irritable bowel syndrome. The Board also remanded the claims for service connection for hearing loss and a back disability.

The Board denied the veteran's claims for increased ratings for his service-connected lumbar myositis, psychoneurosis and conversion hysteria, residuals of shrapnel wounds of the left thigh and pelvis with retained foreign bodies and scars, and residuals of shell fragment wounds of the right thigh and left leg. The veteran was also denied entitlement to a total disability rating based on individual unemployability due to service-connected disabilities.

The Board denied the Veteran's claim for an initial evaluation in excess of 10 percent for his service-connected coronary artery disease, finding that the evidence did not support a higher rating based on the severity of his condition.