42 CFR § 424.33 - Additional requirements: Claims for services of providers and claims by suppliers and nonparticipating hospitals.
---
identifier: "/us/cfr/t42/s424.33"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 424.33 - Additional requirements: Claims for services of providers and claims by suppliers and nonparticipating hospitals."
title_number: 42
title_name: "Public Health"
section_number: "424.33"
section_name: "Additional requirements: Claims for services of providers and claims by suppliers and nonparticipating hospitals."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "424"
part_name: "CONDITIONS FOR MEDICARE PAYMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 1302 and 1395hh."
regulatory_source: "53 FR 6634, Mar. 2, 1988, unless otherwise noted."
cfr_part: "424"
---
# 424.33 Additional requirements: Claims for services of providers and claims by suppliers and nonparticipating hospitals.
All claims for services of providers and all claims by suppliers and nonparticipating hospitals must be—
(a) Filed by the provider, supplier, or hospital; and
(b) Signed by the provider, supplier, or hospital unless CMS instructions waive this requirement.