The following words and phrases when used in this subchapter shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Assistance." Cash assistance, medical assistance or designated services provided under Article IV of the act of June 13, 1967 (P.L.31, No.21), known as the Public Welfare Code.
"Legally responsible relative." Effective January 1, 1997, a spouse and a parent for an unemancipated minor child.
"Secretary." The Secretary of Public Welfare of the Commonwealth.