42 C.F.R. § 447.56 Income-related charges.
Title 42 - Public Health
Subject to the maximum allowable charges specified in §447.54 (a) and (b), the plan may provide for income-related deductible, coinsurance or co-payment charges. For example, an agency may impose a higher charge on medically needy recipients than it imposes upon categorically needy recipients.
Title 42: Public Health
PART 447—PAYMENTS FOR SERVICES
Subpart A—Payments: General Provisions
deductible, coinsurance, co-payment or similar cost-sharing charge
§ 447.56 Income-related charges.

