Medicare Claims Processing Manual (Pub. 100-04), Ch. 6 § 50.2.2
Provider Liability Billing Instructions
50.2.2 - Provider Liability Billing Instructions
(Rev. 1555; Issued: 07-18-08; Effective Date: 01-01-09; Implementation Date: 01-
05-09)
The SNF must file a covered bill with the A/B MAC (A) using occurrence span code 77
that indicates the facility is liable for the services in situations where the SNF failed to
issue the proper beneficiary liability notice and any applicable copayments will be
charged to the beneficiary’s Part A benefit period. Furthermore, the sum of all covered
units reported on all revenue code 0022 lines should be equal to the covered days field
less the number of provider liable days reported in the occurrence span code 77. See §60
of Chapter 1 in this manual for detailed instructions on nonpayment billing requirements.
When the SNF is liable for the Part A stay, the SNF is required to provide all necessary
covered Part A services, including those services such as therapies and radiology
mandated under consolidated billing. For example, if the beneficiary goes to the hospital
for a non-emergency chest x-ray, the SNF will be responsible for the outpatient hospital
radiology and any ambulance charges. In this case, the SNF may not charge the
beneficiary or family members for any services that, in the absence of a payment
sanction, would have been covered under the Part A PPS payment.