42 CFR § 426.320 - Who may challenge an LCD or NCD.

---
identifier: "/us/cfr/t42/s426.320"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 426.320 - Who may challenge an LCD or NCD."
title_number: 42
title_name: "Public Health"
section_number: "426.320"
section_name: "Who may challenge an LCD or NCD."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "426"
part_name: "REVIEW OF NATIONAL COVERAGE DETERMINATIONS AND LOCAL COVERAGE DETERMINATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 1102 and 1871 of the Social Security Act (42 U.S.C. 1302 and 1395hh)"
regulatory_source: "68 FR 63716, Nov. 7, 2003, unless otherwise noted."
cfr_part: "426"
---


# 426.320 Who may challenge an LCD or NCD.

(a) Only an aggrieved party may initiate a review of an LCD or NCD (including a deemed NCD), or provisions of an LCD or NCD by filing an acceptable complaint.

(b) Neither an ALJ nor the Board recognizes as valid any attempt to assign rights to request review under section 1869(f) of the Act.