The VA denied the veteran's claim for compensation benefits under 38 U.S.C.A. § 1151 due to insufficient evidence showing that his heart disability was caused by VA treatment, as it is attributed to a pre-existing condition.

The Board granted compensation pursuant to 38 U.S.C. § 1151 for the cause of the Veteran's death, resolving reasonable doubt in favor of the appellant.

The Veteran is denied entitlement to an effective date earlier than March 8, 2016 for the assignment of a 100 percent disability rating for hypertensive heart disease with ischemic heart disease.,The Veteran is denied entitlement to an effective date earlier than March 10, 2016 for the assignment of a 100 percent disability rating for PTSD with major depressive disorder.,The Veteran is denied entitlement to an effective date earlier than March 8, 2016 for the assignment of a 30 percent disability rating for balance impairment and shuffling gait as a residual of Parkinson's disease.,Service connection for dysphagia, as a residual of Parkinson's disease, was granted with an effective date of December 18, 2012.,The Veteran is denied entitlement to an effective date earlier than March 8, 2016 for service connection for chronic constipation, as a residual of Parkinson's disease.

The Veteran's urinary frequency, due to his service-connected hypertension and medication use, is rated at 40 percent. The Veteran also meets the criteria for SMC based on need for regular aid and attendance due to his service-connected disabilities.

The rating for hypertensive heart disease was reduced from 100% to 30% effective August 1, 2013. The reduction was improper and the 100% rating is restored. A subsequent reduction to 60% effective December 11, 2018, was proper.