42 CFR § 423.604 - Effect of a reconsideration determination.
---
identifier: "/us/cfr/t42/s423.604"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 423.604 - Effect of a reconsideration determination."
title_number: 42
title_name: "Public Health"
section_number: "423.604"
section_name: "Effect of a reconsideration determination."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "423"
part_name: "VOLUNTARY MEDICARE PRESCRIPTION DRUG BENEFIT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 1302, 1306, 1395w-101 through 1395w-152, and 1395hh."
regulatory_source: "70 FR 4525, Jan. 28, 2005, unless otherwise noted."
cfr_part: "423"
---
# 423.604 Effect of a reconsideration determination.
A reconsideration determination is final and binding on the enrollee and the Part D plan sponsor, unless the enrollee files a request for a hearing under the provisions of § 423.2014.
[70 FR 4525, Jan. 28, 2005, as amended at 74 FR 65363, Dec. 9, 2009; 84 FR 19872, May 7, 2019]