---
kind: "range"
citation: "20 C.F.R. §§ 418.1320–418.1325"
title: "20"
from: "418.1320"
to: "418.1325"
count: 3
url: "https://uscodex.org/cfr/20/418.1320..418.1325"
---

# §418.1320. What is the effect of an initial determination?


An initial determination is binding unless you request a reconsideration within the time period described in §§ [404.909](/cfr/20/404.909.md) and [404.911](/cfr/20/404.911.md) of this chapter or we revise the initial determination or issue a new initial determination.


# §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.


# §418.1325. When may you request a reconsideration?


If you are dissatisfied with our initial determination about your income-related monthly adjustment amount, you may request that we reconsider it. In addition, a person who shows that his or her rights may be adversely affected by the initial determination may request a reconsideration. We may accept requests for reconsideration that are filed by electronic or other means that we determine to be appropriate. Subject to the provisions of this section and [§ 418.1330](/cfr/20/418.1330.md), when you request a reconsideration, we will use the rules in [§§ 404.907 through 404.922](/cfr/20/404.907..404.922.md) of this chapter.