---
kind: "section"
citation: "42 C.F.R. § 423.558"
title: "42"
number: "423.558"
heading: "Scope."
url: "https://uscodex.org/cfr/42/423.558"
---

# §423.558. Scope.

- (a) **This subpart sets forth the requirements relating to the following—**
  - (1) **Part D plan sponsors with respect to grievances, coverage determinations, and redeterminations.**
  - (2) **Part D IRE with respect to reconsiderations.**
  - (3) Part D enrollees' rights with respect to grievances, coverage determinations, redeterminations, and reconsiderations.
  - (4) Review of at-risk determinations made under a drug management program in accordance with [§ 423.153(f)](/cfr/42/423.153.md?p=f).
- (b) The requirements regarding reopenings, ALJ hearings and ALJ and attorney adjudicator decisions, Council review, and judicial review are set forth in subpart U of this chapter.

## Notes

### Amendments

[74 FR 65363, Dec. 9, 2009, as amended at 82 FR 5125, Jan. 17, 2017; 83 FR 16750, Apr. 16, 2018]

### Authority

Authority: 42 U.S.C. 1302, 1306, 1395w-101 through 1395w-152, and 1395hh.

### Source

Source: 70 FR 4525, Jan. 28, 2005, unless otherwise noted.

### Amendments

[74 FR 65363, Dec. 9, 2009, as amended at 82 FR 5125, Jan. 17, 2017; 83 FR 16750, Apr. 16, 2018]