; (ii) under a State Pharmaceutical Assistance Program; (iii) by the Indian Health Service, an Indian tribe or tribal organization, or an urban Indian organization (as defined in section 4 of the Indian Health Care Improvement Act); or (iv) under an AIDS Drug Assistance Program under part B of title XXVI of the Public Health Service Act. (2) Information exchange The provisions of section 1860D–2(b)(4)(D) shall apply for purposes of this subsection in the same manner as such provisions apply for purposes of section 1860D–2(b)(4). (f) Coordination The Secretary shall provide for such procedures as is necessary, including by requiring submission of information from PDP sponsors, to implement the provisions of this section and apply the OOP drug catastrophic limit applicable to costs incurred for eligible Medicare drugs for purposes of coverage of such drugs under part B and this part. (g) Eligible Medicare drugs (1) In general For purposes of this section, the term eligible Medicare drug means any of the following: (A) A covered part D drug. (B) Subject to paragraph (2), a drug or biological paid for under section 1833(t), 1847, 1847A, or 1847B. (2) Exception A drug or biological described in paragraph (1)(B) does not include a drug or biological furnished as part of a grouping of items and services and paid for as such a grouping in an ambulatory payment classification under section 1833(t) (instead of separately payable under such section). . (b) Application of OOP drug catastrophic limit under part B Section 1833 of the Social Security Act— (1) in subsection (a)(1)(S), by inserting subject to subsection (bb), before the amounts paid ; (2) by redesignating the subsection (z), relating to medical review of spinal subluxation services, as subsection (aa)