The Board found that the veteran's claim for service connection for PTSD was not supported by credible stressors or corroborating evidence of the claimed stressors having actually occurred, and thus denied the claim.

The Veteran's claims for service connection for an acquired psychiatric disorder, bilateral hearing loss, and tinnitus have been dismissed as the issues are moot due to the grant of service connection in a September 2019 rating decision.

The Board denied the Veteran's claims for service connection for an acquired psychiatric disorder (to include PTSD) and residuals of a traumatic brain injury, finding that there was no evidence to support these claims based on the lack of in-service stressors or injuries.

The Veteran's claim for an acquired psychiatric disorder, including PTSD, was denied as there is no evidence of a current disability or causal relationship to service.,Service connection for swelling of the left testicle was denied due to lack of documented pathology and continuity of symptomatology.,Bilateral hearing loss and tinnitus were not granted service connection as they did not manifest within the applicable presumptive period and there is no evidence linking them to in-service noise exposure or other events.,Service connection for eczematous dermatitis was denied due to lack of a current diagnosis related to service, including fuel exposure during service.,Degenerative arthritis of the lumbar spine was granted a 20% rating as it meets the criteria under Diagnostic Code 5242.,Increased rating for degenerative arthritis of the lumbar spine was not granted as there is no evidence of unfavorable ankylosis.

The Board has denied the Veteran's claims for service connection for an acquired psychiatric disorder, to include PTSD. The Board also remanded the issues of increased ratings for degenerative arthritis of the left and right knees and right ankle tendonitis.