Medicare Secondary Payer Manual (Pub. 100-05), Ch. 3 § 30.3
Provider Billing Medicare for Secondary Benefits Where Services Are Covered
30.3 - Provider Billing Medicare for Secondary Benefits Where Services Are Covered
by a GHP
(Rev. 11874, Issued: 02-23-23, Effective: 03-24-23; Implementation: 03-24-23)
If a GHP pays primary benefits, secondary Medicare benefits may be payable to supplement the
amount paid by the GHP. Medicare secondary benefits may be payable if the following situations
apply:
•
The plan payment is less than the provider's charges for Medicare covered
services;
•
The plan payment is less than the gross amount payable by Medicare; and,
•
The provider does not accept and is not obligated to accept the GHP primary
payment as payment in full.
When a provider bills Medicare for secondary benefits, the primary payment amounts are
reported according to sections 40.1.1 - 40.1.2 below. If a GHP denies a claim for primary
benefits, the provider submits a bill for conditional primary benefits with an explanation of any
reason given by the plan for its denial. For an inpatient hospital or SNF stay, if the GHP's
payment equals or exceeds the gross amount payable by Medicare, or equals or exceeds the
provider's charges for Medicare covered services or the provider accepts or is obligated to accept
the GHP payment as payment in full, a no payment bill is submitted in accordance with Pub.
100-05, Chapter 5.
Any excess of the GHP payment over the gross amount payable by Medicare is not deducted
from the provider's Medicare reimbursement at final cost settlement. If the GHP denies a
provider's claim for primary benefits, the provider submits a claim for primary Medicare
benefits or conditional primary benefits as provided for in Pub. 100-05, Chapter 5.