Client received service connection for left knee arthritis, status post total arthroplasty, with an evaluation of 10 percent effective July 1, 1990; an evaluation of 100 percent from May 13, 2011; an evaluation of 30 percent from July 1, 2014; service connection for left knee scar with an evaluation of 0 percent effective June 15, 2011; service connection for myelodysplastic syndrome (MDS) with pancytopenia and thrombocytopenia with an evaluation of 70 percent effective September 11, 2017; an evaluation of 100 percent from November 18, 2019; service connection for incomplete right bundle branch block (claimed as RBBB) with an evaluation of 0 percent effective March 22, 2019; entitlement to special monthly compensation based on housebound criteria being met from November 18, 2019; basic eligibility to Dependents’ Educational Assistance based on permanent and total disability status from November 18, 2019.