The VA denied the veteran's claim of entitlement to service connection for lower back pain, finding no evidence of in-service treatment or a link between current condition and service.

The Board has denied the Veteran's claims for service connection for traumatic brain injury, left shoulder condition, and lower back pain as there is no persuasive evidence of a current disability or in-service event that would support these claims.

The Board denied service connection for irritable bowel syndrome and posttraumatic stress disorder, but granted an effective date of February 4, 2024, for a 70 percent evaluation for PTSD.

The Veteran's claim for a compensable rating for erectile dysfunction was denied as there is no evidence of penile deformity.,The Veteran's claim for a compensable rating for right ear hearing loss was denied as his hearing impairment did not meet the criteria for an exceptional pattern and falls within the noncompensable range.,The Veteran's claim for service connection for left ear hearing loss was denied as he does not have hearing loss for VA purposes in that ear.,The Veteran's claim for service connection for lower back pain was denied as there is no evidence of a disability at any time during or approximate to the pendency of the claim.,The Veteran's claim for a compensable rating for allergic rhinitis, for the period from September 14, 2021, to April 11, 2024, was denied as there is no evidence showing greater than 50 percent obstruction of nasal passages on both sides or complete obstruction on one side.

The Veteran's service-connected disabilities, including pulmonary hypertension, obstructive sleep apnea, and multiple joint issues, render him in need of regular aid and assistance due to his inability to perform daily activities without help. SMC based on the need for regular aid and attendance is granted.