US · guidance
CMS Pub. 100-08, ch. 3, § 3.6.4
Notifying the Provider
This section applies to the MACs, RACs, UPICs, and I-MEDIC, as indicated.
A. General
UPICs and the I-MEDIC may use Kiteworks to facilitate the secure exchange of records
and information between contractors, providers/suppliers, and MACs. Kiteworks is
authorized in the Federal Risk and Authorization Management Program (FedRAMP) for
secure file transfer and sharing functions. The UPICs and I-MEDIC, including all
approved subcontractors, shall continue to ensure Federal Information Security
Management Act (FISMA)/FedRAMP compliance in accordance with the CMS Office of
Information Technology’s (OIT) security requirements.
The exchange of records and information may include, but is not limited to:
• Additional Documentation Request (ADR),
• Overpayment/education letters,
• Post-payment medical review outcomes documentation,
• Administrative actions notices, and
• Statistical sample spreadsheets and methodologies.
At the conclusion of postpayment review, the MACs shall send a Review Results Letter
to the provider even if no overpayment determination is made. If the MACs choose to
send a Review Results Letter separately from the demand letter they shall do so within
the timeframes listed in PIM chapter 3, §3.3.1.1F. Likewise, the RACs shall issue a
Review Results Letter for all audits as outlined in their SOW requirements.
UPICs shall comply with the requirements listed below when issuing Review Results
Letters. Each Review Results Letter shall include:
• Identification of the provider or supplier—name, address, and NPI;
• Reason for conducting the review or good cause for reopening;
• A narrative description of the overpayment situation that states the specific
issues involved in the overpayment as well as any recommended corrective
actions;
• The review determination for each claim in the sample, including a specific
explanation of why any services were determined to be non-covered, or
incorrectly coded and if others were payable;
• A list of all individual claims that includes the actual non-covered amount, the
reason for non-coverage, the denied amounts, under/overpayment amounts, the
§1879 and §1870 of the Act determinations made for each specific claim, along
with the amounts that will and will not be recovered from the provider or
supplier;
• Any information required by PIM chapter 8, §8.4 for statistical sampling for
overpayment estimation reviews;
• Total underpayment amounts;
• Total overpayment amounts that the provider or supplier is responsible for;
• Total overpayment amounts the provider or supplier is not responsible for
because the provider or supplier was found to be without fault;
• MACs shall include an explanation that subsequent adjustments may be made at
cost settlement to reflect final settled costs;
• An explanation of the procedures for recovery of overpayments including
Medicare’s right to recover overpayments and charge interest on debts not repaid
within 30 days (not applicable to RACs or UPICs);
• The provider’s or supplier’s right to request an extended repayment schedule
(not applicable to RACs or UPICs);
• The MACs and UPICs shall include limitation of liability and appeals
information in the provider notices;
• The MACs shall include appeals information in the provider notices;
• The MACs shall include the provider or supplier financial rebuttal rights under
PIM chapter 3, §3.6.5; and
• For MAC Review Results Letter only, a description of any additional corrective
actions or follow-up activity the MAC is planning (i.e., prepayment review, re-review in 6 months).
If a claim is denied through prepayment review, the MACs and UPICs are encouraged to
issue a notification letter to the provider but may use a remittance notice to meet this
requirement. However, if a claim is denied through postpayment review, the MAC and
RAC shall notify the provider by issuing a notification letter to meet this requirement.
The UPIC shall use discretion on whether to issue a notification letter.
The CERT contractor is NOT required to issue provider notices for claims they deny.
Instead, the CERT contractor shall communicate sufficient information to the MAC to
allow the MAC to develop an appropriate provider notice.
B. MACs
The MACs need provide only high-level information to providers when informing them
of a prepayment denial via a remittance advice. In other words, the shared system
remittance advice messages are sufficient notices to the provider. However, for medical
record review, the provider should be notified through the shared system, but the MAC
shall retain more detailed information in an accessible location so that upon written or
verbal request from the provider, the MAC can explain the specific reason the claim was
denied as incorrectly coded or otherwise inappropriate.
C. RACs
For overpayments detected through medical record review, the RAC shall send a review
results letter as indicated in the RAC SOW. In addition, the RAC shall communicate
sufficient information to the MAC so that the MAC can send a remittance advice to the
provider and collect the overpayment.
For underpayments, the RAC shall notify the provider as indicated in the RAC SOW. In
addition, the RAC shall communicate sufficient information to the MAC so that the MAC
can send a remittance advice to the provider and pay back the underpayment.
D. UPICs
For overpayments detected through medical record review, and after coordination
between the UPIC and OIG, the UPIC shall send a review results letter (the MAC sends
the demand letter). In addition, the UPIC shall communicate sufficient information to the
MAC so that the MAC can send a demand letter to the provider and collect the
overpayment. The UPIC shall use discretion on whether to send the review results letter.
E. Indicate in the Denial Notice Whether Records Were Reviewed
For claims where the MAC or UPIC had sent an ADR letter and no timely response was
received, they shall issue a denial and indicate in the provider denial notice, that the
denial was made without reviewing the documentation because the requested
documentation was not received or was not received within the allowable time frame
(§1862(a) (1) of the Act). This information will be useful to the provider in deciding
whether to appeal the decision. When denying the claims, contractors shall use Group
Code: CO - Contractual Obligation and Claim Adjustment Reason Code (CARC) 50 -
these are non-covered services because this is not deemed a “medical necessity” by the
payer and Remittance Advice Remark Code (RARC) M127 - Missing patient medical
record for this service.
For claims where the reviewer makes a denial following medical record review, the
reviewer has the discretion to indicate in the denial notice, using Group Code: CO -
Contractual Obligation and Claim Adjustment Reason Code (CARC) 50 - these are non-covered services because this is not deemed a “medical necessity” by the payer that the
denial was made after review of submitted documentation. This includes those claims
where the provider submits documentation along with the claim and the reviewer selects
that claim for review.
History
(Rev. 13821; Issued: 06-09-26; Effective: 02-26-26; Implementation: 02-26-26)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
5d96d6b8290a74c2981f6072219cf5accebd505dc1f56d41eea82e962c9f7dcd
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