C.F.R.
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Title 42
» CHAPTER IV—CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES › SUBCHAPTER B—MEDICARE PROGRAM › PART 423—VOLUNTARY MEDICARE PRESCRIPTION DRUG BENEFIT › Subpart M—Grievances, Coverage Determinations, Redeterminations, and Reconsiderations
The coverage determination is binding on the Part D plan sponsor and the enrollee unless it is reviewed and revised under §§ 423.580 through 423.604 and §§ 423.2000 through 423.2140 or is reopened and revised under § 423.1978.
[70 FR 4525, Jan. 28, 2005, as amended at 74 FR 65363, Dec. 9, 2009; 84 FR 19872, May 7, 2019]