Title XIX and XXI– the Federal legal base of the Medical Assistance program is vested in Titles XIX and XXI of the Federal Social Security Act. These titles are used throughout SoonerCare (Medicaid) rules. Policy regarding this term is located at: SSP: 340:15-1-4. State Supplemental Payment plan; and 340:15-1-5. State Supplemental Payment. SoonerCare (Medicaid): 317:35-1-1. […]