(a) To be eligible for Medicaid, an institutionalized spouse must have countable income that does not exceed the special income limit for an individual and meet all other eligibility criteria.(b) In determining the income of an institutionalized spouse or community spouse for purposes of determining a co-payment, the Texas Health and Human Services Commission follows §1924(b)(2) and (d) of the Social Security Act (42 U.S.C. §1396r-5(b)(2) and (d)). See also Division 6 of this subchapter (relating to Budgeting for Eligibility and Co-payment).