---
kind: "section"
citation: "20 C.F.R. § 418.1322"
title: "20"
number: "418.1322"
heading: "How will a Medicare prescription drug coverage income-related monthly adjustment amount determination for the effective year affect your Medicare Part B?"
url: "https://uscodex.org/cfr/20/418.1322"
---

# §418.1322. How will a Medicare prescription drug coverage income-related monthly adjustment amount determination for the effective year affect your Medicare Part B?


If we make an income-related monthly adjustment amount determination for you for the effective year under [subpart C](/cfr/20/subpartC.md) of this part (Medicare Prescription Drug Coverage Income-Related Monthly Adjustment Amount), we will apply that income-related monthly adjustment amount determination under this subpart to determine your Part D income-related monthly adjustment amount for the same effective year. Therefore, if you become enrolled in Medicare Part B in the effective year after we make an income-related monthly adjustment amount determination about your Medicare prescription drug coverage, the income-related monthly adjustment amount determination for your Medicare prescription drug coverage will also be used to determine your Medicare Part B income-related monthly adjustment amount. Any change in your net benefit due will be accompanied by a letter explaining the change in your net benefit and your right to appeal the change.


## Notes

### Amendments

[75 FR 75890, Dec. 7, 2010]

### Authority

Authority: Secs. 702(a)(5) and 1839(i) of the Social Security Act (42 U.S.C. 902(a)(5) and 1395r(i)).

### Source

Source: 71 FR 62931, Oct. 27, 2006, unless otherwise noted.

### Source

Source: 70 FR 77675, Dec. 30, 2005, unless otherwise noted.

### Amendments

[75 FR 75890, Dec. 7, 2010]