---
kind: "section"
citation: "42 C.F.R. § 423.466"
title: "42"
number: "423.466"
heading: "Timeframes for coordination of benefits and claims adjustments."
url: "https://uscodex.org/cfr/42/423.466"
---

# §423.466. Timeframes for coordination of benefits and claims adjustments.

- (a) **Retroactive claims adjustments, underpayment refunds, and overpayment recoveries.** Whenever a sponsor receives information that necessitates a retroactive claims adjustment, the sponsor must process the adjustment and issue refunds or recovery notices within 45 days of the sponsor's receipt of complete information regarding claims adjustment.
- (b) **Coordination of benefits.** Part D sponsors must coordinate benefits with SPAPs, other entities providing prescription drug coverage, beneficiaries, and others paying on the beneficiaries' behalf for a period of 3 years from the date on which the prescription for a covered Part D drug was filled.

## Notes

### Amendments

[75 FR 19819, Apr. 15, 2010, as amended at 80 FR 7964, Feb. 12, 2015]

### 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

[75 FR 19819, Apr. 15, 2010, as amended at 80 FR 7964, Feb. 12, 2015]