Knowledge Base Article

Since the release of the 2014 IPPS Final Rule (CMS-1599-F), the Centers for Medicare and Medicaid Services (CMS) have provided additional guidance to several elements of the rule. On March 21st they released MLN Matters® Number: MM8666 proving guidance on how to implement the Part B Inpatient Payment Policies in the CMS-1599-F. This article is based on Change Request (CR) 8666 that updates the Medicare Benefit Policy Manual Chapter 6 – Hospital Services Covered under Part B. Now, let’s walk through highlights from the article.

When would a Hospital consider rebilling Part A to Part B?

When a hospital “self-audits” a Medicare beneficiary’s hospitalization after they have been discharged and determines that the inpatient admission was not reasonable and necessary and instead should have been a hospital outpatient stay, then they should consider rebilling.

A hospital can also consider rebilling when a Medicare Contractor has performed a complex review of an inpatient claim and denied the claim.

What Services are allowable by Medicare when the claim is rebilled?

“Medicare will allow payment under Part B of all hospital services that were furnished and would have been reasonable and necessary if the beneficiary had been treated as a hospital outpatient…except for those services that specifically require an outpatient status, such as outpatient visits, emergency department visits, and observation services, that are, by definition, provided to hospital outpatient and not inpatients.”

What are limitations of being able to rebill?

• The beneficiary must be enrolled in Part B,
• The allowed timeframe for submitting claims (within one calendar year from the date of service) hasn’t expired; and
• Waiver of liability payment is not made.

What is the process for submitting a claim?

• If you have already submitted a claim to Medicare for Part A payment, this claim must be cancelled before submitting the Part B services claim.
• Even if you have not yet submitted a claim “Medicare requires the hospital to submit a “no pay” Part A claim indicating that the provider is liable under section 1879 of the Act for the cost of the Part A services.”

At this point you would submit an inpatient claim for payment under Part B (a 12x type of bill).

How are Part B Payments made?

“Payment is made according to the Part B fee schedules or prospectively determined rates for which payment is made for these services when provided to hospital outpatients.”

What Type of Hospitals can submit Part B inpatient claims?

All hospitals that bill Part A services are eligible to bill the Part B inpatient services, including:

• Short Term Acute Care Hospitals paid under IPPS,
• Hospitals paid under OPPS,
• Long Term Care Hospitals (LTCHs),
• Inpatient Psychiatric Facilities (IPFs) and IPF hospital units,
• Inpatient Rehabilitation Facilities (IRFs) and IRF hospital units,
• Critical Access Hospitals (CAHs),
• Children’s Hospitals,
• Cancer Hospitals; and
• Maryland Waiver Hospitals.

What the Medicare Beneficiary Liability is and the Hospitals Responsibility for Payment?

• A Medicare Beneficiary is liable for their usual Part B financial liability.
• “If the beneficiary’s liability under Part A for the initial claim submitted for inpatient services is greater than the beneficiary’s liability under Part B for the inpatient services they received, the hospital must refund the beneficiary the difference between the applicable Part A and Part B amounts.”
• However “if the beneficiary’s liability under Part A is less than the beneficiary’s liability under Part B for the services they received, the beneficiary may face greater cost sharing.”

The MLN Article goes on to discuss what services a Hospital can and cannot bill for. The CMS makes a point to remind hospitals that “the services billed to Part B must be reasonable and necessary and must meet all applicable Part B coverage and payment conditions. Claims for Part B services submitted following a reasonable and necessary Part A claim denial or hospital utilization review determination must be filed no later than the close of the period ending 12 months or one calendar year after the date of service.”

MMP strongly recommend that hospital read the entire article as well as (CR) 8666 and share this information with all staff members that would be involved in this process.