The Veteran's claim for service connection for an acquired psychiatric disorder was reopened and granted. However, his claims for left upper extremity neuropathy, right upper extremity neuropathy, left lower extremity neuropathy, and right lower extremity neuropathy were denied.,Service connection for deep severe pain of the whole body was also denied.

The Board finds the evidence does not support a finding that the Veteran has an acquired psychiatric disorder related to service, particularly given inconsistencies in his statements and lack of combat service.

The Board has determined that new and relevant evidence has been received to warrant readjudicating the appellant's claim of service connection for the Veteran's cause of death. The case is remanded for further development, including obtaining medical opinions regarding the etiology of the Veteran's death.

The Veteran's TBI and other specified trauma disorder are being remanded for further evaluation.,The Veteran's increased rating claim for other specified trauma disorder is also being remanded.,Service connection for ulcerative pancolitis, irritable bowel syndrome, chronic anemia, skin disability (psoriasis), sleep apnea, cervical spine disability, right knee disability, left hip disability, and right lower extremity neuropathy are all being remanded due to the need for additional medical examination and opinion.,The Veteran's service connection claims will be addressed based on his credible history of service in combat zones.

The Veteran's claim for an increased rating for thoracolumbar spine degenerative arthritis and DDD was granted effective August 29, 2022. Service connection was established for vitreous syneresis / vitreous floaters of both eyes. The claims for service connection for refractive error of both eyes (myopia and astigmatism), bilateral hearing loss disability, residuals of a traumatic brain injury (TBI), obstructive sleep apnea, and an acquired psychiatric disorder (PTSD) were all denied.