Medicare's skilled nursing facility consolidated billing rule routes nearly every service a resident receives during a covered Part A stay through the SNF's own claim, and a laboratory, radiology group, or hospital that bills Part B directly for one of those services collects a payment Medicare can later recoup as an overpayment. The rule has applied since July 1, 1998, under Section 4432(b) of the Balanced Budget Act of 1997, codified at Sections 1862(a)(18), 1866(a)(1)(H)(ii), and 1888(e)(2)(A) of the Social Security Act. For outside suppliers, the audit exposure sits less in what was billed than in who billed it.

The Consolidated Billing Rule for SNF Stays

A SNF must submit the Medicare claim for almost every service its Part A residents receive, whether the SNF furnishes the service directly or obtains it from an outside supplier under an arrangement. CMS built the rule to stop SNFs from unbundling care to suppliers that then billed Part B directly. An outside supplier furnishing a bundled service must look to the SNF for payment, not Medicare or the beneficiary. The rule also reaches therapy services furnished under Part B when a resident's Part A stay is not covered.

Services Excluded From the SNF Bundle

Physicians' and certain other practitioners' professional services are billed separately to the Medicare Administrative Contractor. Only the professional component is excluded; the technical component of the same service, such as a diagnostic radiology test, stays on the SNF's claim. CMS groups the remaining exclusions into major categories: services that require a hospital setting, including CT scans, cardiac catheterization, and emergency room visits; dialysis and related drugs for beneficiaries with end-stage renal disease, and hospice care; chemotherapy, radioisotopes, and certain customized prosthetic devices; and Part B preventive screenings such as mammography and vaccines. Physical therapy, occupational therapy, and speech-language pathology services stay on the SNF's claim regardless of who furnishes them, because the statute never lists them among the exclusions. An excluded service still answers to the local coverage determination that applies in its own jurisdiction.

A service inside the consolidated billing bundle stays bundled regardless of which entity submits the claim.

Where Overpayments and Audit Exposure Arise

CMS enforces the rule through claims-processing edits comparing a supplier's Part B claim against the SNF's Part A stay dates. A January 2008 Office of Inspector General review found that, before those edits were fully operational, Medicare Part B made $106.9 million in potential overpayments to outside suppliers of outpatient hospital, laboratory, and radiology services for beneficiaries in covered Part A stays during calendar years 2001 and 2002. After the edits took full effect in 2003, potential overpayments fell to $22.7 million, of which OIG estimated $17.9 million remained unrecovered. Recovery Audit Contractors also test consolidated billing compliance during broader SNF claims reviews.

A resident's temporary absence or a supplier that never confirms a patient's SNF status can produce a Part B claim that the edits later flag and recoup, sometimes extrapolated across a broader claims sample. Once Medicare pays the facility's per diem rate for a covered stay, the SNF is responsible for reimbursing the outside supplier for any bundled service that resident received, written arrangement or not. Repeated nonpayment to suppliers can itself violate the SNF's provider agreement under Section 1866(a)(1)(H)(ii) of the Act.

Health Law Alliance's attorneys have overseen 2,000+ audits and handled 5,000+ matters, with 25+ years of experience.

Why Early Legal Counsel Is Critical

It is critical that SNFs and outside suppliers promptly retain experienced healthcare defense counsel upon receiving an audit notice, a prepayment review request, a recoupment demand, or any other government or contractor inquiry tied to consolidated billing. Early legal intervention can protect the provider's rights, ensure appropriate responses to government and contractor requests, avoid inadvertent admissions, preserve relevant defenses, and allow counsel to communicate with investigators or contractors on the provider's behalf. Delaying legal representation can significantly affect the outcome of a matter and expose the provider to unnecessary risk.

How Health Law Alliance Can Help

Health Law Alliance represents skilled nursing facilities in Medicare audit defense and recoupment demands nationwide. Our attorneys sort which claims belong on the facility's Part A bill and which belong to an excluded practitioner or category, so a facility can see where its own billing exposure sits before responding. If your facility is facing a consolidated billing audit or overpayment demand, contact our skilled nursing facility audit defense attorneys for a free, confidential consultation.