Medicare Secondary Payer Manual (Pub. 100-05), Ch. 5 § 20
Sources That May Identify Other Insurance Coverage
20 - Sources That May Identify Other Insurance Coverage
(Rev. 11550; Issued: 08-12-22; Effective: 10-13-22; Implementation:10-13-22)
A/B Medicare Administrative Contractors (MACs) (Part A), A/B MACs (Part B), or A/B MACs (Part
HHH) (collectively referred to as A/B MACs) and DME MACs use the following guidelines to
identify claims for otherwise covered services when there was a possibility that payment had been
made or can be made by an insurer primary to Medicare.
• Information is received from a provider, physician, supplier, the beneficiary, A/B
MAC and DME MAC operations (e.g., medical or utilization review), other non-
Medicare counterparts, or any other source indicating Medicare has been billed for
services when there is a possibility of payment by an insurer that is primary to Medicare;
• The health insurance claim form shows that the services were related to an accident
(i.e., the diagnosis is due to trauma) or occupational illness (e.g., black lung disease) or
were furnished while the beneficiary was covered by a GHP or an LGHP which is
primary to Medicare;
• The CWF indicates a validity indicator value of “I” or "Y" showing the presence of
MSP coverage;
• Information in an A/B MAC or DME MAC record- indicates a primary payer;
• There is an indication that the beneficiary previously received benefits or had a claim
pending for insurance that is primary to Medicare. The A/B MAC or DME MAC
assumes, in the absence of information to the contrary, that this coverage continues;
• Medicare has not made payment and the A/B MAC and the DME MAC is asked to
endorse a check from another insurer payable to Medicare and some other entity. The A/B
MAC or the DME MAC returns the check to the requester and advises that the insurer pay
primary benefits to the full extent of the GHP's primary obligation. (The A/B MAC and the
DME MAC follows the recovery instructions in Chapter 7, "MSP Recovery," and Chapter
3 of Pub. 100-6, the Medicare Financial Management Manual, if the check relates to
services for which Medicare paid primary.) As necessary, it follows up with the provider,
physician, supplier, beneficiary, and/or attorney to find out if the beneficiary receives
payment from the GHP;
• Medicare receives or is informed of a request from an insurance company or attorney
for copies of bills or medical records. Providers are instructed to notify the MSP
Contractor promptly of such requests and to send a copy of the request. If the request is
unavailable, providers are to provide full details of the request, including the name and
Medicare beneficiary identifier of the patient, name and address of the insurance
company and/or attorney, and date(s) of services for which Medicare has been billed or
will be billed;
• Where a GHP's primary coverage is established because the individual forwards a copy
of the GHP's explanation of benefits and the individual meets
the conditions in Chapter 1, §10, the A/B MAC and the DME MAC processes the claim
for secondary benefits;
• A claim is billed as Medicare primary and it is the first claim received for the
beneficiary and there is no indication that previous MSP development has occurred; or
• The CWF MSP auxiliary detail screen contains a 1-byte Ongoing Responsibility for
Medicals (ORM) indicator, where the value is “Y,” which indicates that a Section 111
Medicare, Medicaid, and S-CHIP Extension Act (MMSEA) Responsible Reporting
Entity (RRE) has accepted ongoing responsibility for a particular liability, no-fault, and
workers’ compensation incident. NOTE: Further details regarding ORM, the new 1-byte
ORM indicator on CWF, and how to handle and process claims based on the value
present within the CWF ORM field may be found in Section 2.4 below.
Other insurance that may be primary to Medicare is shown on the institutional claim as follows:
• A Value Code of 12, 13, 14, 15, 16, 41, 43, 44, or 47;
• An Occurrence Code of 01, 02, 03, 04, 05, 24, 25, or 33;
• A Condition Code of 02, 05, 06, 77, or D7;
• A diagnosis code is shown on the NGHP claim; or
• Another insurer is shown as the primary payer on line A of Payer Name.
Special Note for Incoming Hard Copy Part B Non-Facility Claims: Other insurance that
may be primary to Medicare is shown on the Form CMS-1500 claim form when item 11 is
completed. A primary insurer is identified in the "Remarks" portion of the bill.
With the installation of the Benefits Coordination & Recovery Center (MSP Contractor), the A/B
MACs and DME MACs use ECRS to advise the MSP Contractor of the possibility of another
insurer, and awaits MSP Contractor development before processing the claim.