; and (C) must, pursuant to the approval or clearance described in section 1861(kkk)(1)(A), be adjunctive to the use of the prescription digital therapeutic. . (d) Rule of construction; effective date (1) Rule of construction No provision of this section, or the enactment of this section, shall be construed to imply that, in the case of an item or service that meets the definition of a prescription digital therapeutic under this section for which coverage or payment under the Medicare program is already available prior to the date of the enactment of this Act may not be covered or reimbursed under such program. (2) Effective date The amendments made by this section shall apply to a prescription digital therapeutic dispensed after December 31, 2020. 3. Coverage of prescription digital therapeutics under the Medicaid program Section 1905(a) of the Social Security Act ( 42 U.S.C. 1396d(a) ) is amended— (1) in paragraph (29), by striking ; and and inserting a semicolon; (2) by redesignating paragraph (30) as paragraph (31); and (3) by inserting the following paragraph after paragraph (29): (30) prescription digital therapeutics (as defined in section 1861(kkk)); and .