; and (2) in paragraph (4)— (A) in subparagraph (A)— (i) by striking such subsection and inserting such paragraph ; and (ii) by inserting and coverage in every category is included before the semicolon; (B) by redesignating subparagraphs (E) through (H) as subparagraphs (F) through (I), respectively; and (C) by inserting after subparagraph (D) the following: (E) ensure that, to be treated as providing coverage for the essential health benefits described in paragraph (1), a qualified health plan— (i) shall not substitute benefits between categories described such paragraph, as described in section 156.115(b)(2)(ii) of title 45, Code of Federal Regulations, as in effect on the day before the date of enactment of the Consumer Health Insurance Protection Act of 2019 ; (ii) shall provide a wide variety of classes of prescription drugs on the prescription drug formulary of such plan; (iii) shall, if a medically necessary drug is not on the prescription drug formulary of such plan, allow individuals enrolled in such plan to have access to the drug through an exceptions process established by the plan