US · guidance
CMS Pub. 100-08, ch. 3, § 3.6.2.3
Limitation of Liability Determinations
This section applies to MACs, CERT, Recovery Auditors, and UPICs, as
indicated.
Section 1879(a)-(g) of the Act limits the financial liability of beneficiaries, providers, and
suppliers by permitting Medicare payments, or requiring refunds, for certain services and
items for which Medicare payment would otherwise be denied. The purpose of this
provision is to protect beneficiaries from liability in certain cases of denied services. The
limitation of liability provisions apply only to claims for services not statutorily excluded,
that are denied for the following reasons:
• The service or item did not meet the reasonable and necessary
criteria;
• The beneficiary or provider did not know, or could not have been
reasonably expected to know that the service or item would not be
covered; and
• The beneficiary receives certain screening tests and preventive
services in excess of the guidelines.
(See IOM Pub. 100-04, chapter30, §20 for more information).
The MACs, CERT, and UPICs shall first examine benefit categories and statutory
exclusions to determine if a service or item is covered. Recovery Auditors shall examine
categories and exclusions as outlined in their SOW. If the item or service meets the
requirements of the appropriate benefit category and is not excluded by statute, the next
consideration is whether the service was reasonable and necessary. When a claim is
denied, in full or in part, because an item or service is not reasonable and necessary,
MACs, CERT, Recovery Auditors, and UPICs shall make and document determinations
as appropriate to §§1879, 1870, and 1842(l) of the Act. Because the determinations can
be appealed, it is important that the rationale for the determination be documented
initially and at each level of appeal.
Limitations of liability provisions do not apply if there is a statutory exclusion, even if the
service meets the reasonable and necessary criteria.
History
(Rev. 10365; Issued: 10-02-20; Effective: 08-27-20; Implementation: 08-27-20)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
858f42901a557ce34dd4b484548f7d34d1c7529a566db48ea9bb5655332711fa
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