Did a MAC Really Imply That the Inpatient Admission Order is Optional?

Did a MAC Really Imply That the Inpatient Admission Order is Optional?

MAC advice to one hospital seems too good to be true.

Boy, do I have a story to tell.

Now, let me start by noting that I am relaying information provided by a case management leader and did not have access to any medical records, nor was I able to listen in to the calls that took place. As always, before you do anything, be sure to check with your legal and compliance staff to be sure they support what you are doing. I am also not going to name the hospital nor the Medicare Administrative Contractor (MAC) involved, but would be happy to provide that information to someone from the Centers for Medicare & Medicaid Services (CMS).

That said, here is the situation. As you know, CMS has in place a required prior authorization program for specific outpatient procedures performed in the hospital outpatient department, where data has shown increases in utilization. Included in that program are two codes for cervical spine fusion, 22551 and 22552. At this hospital, a patient was scheduled for this surgery, and the prior authorization request was submitted to the MAC and approved.

The surgery proceeded and the patient was discharged from the recovery room. The chart went to coding and the surgery performed was coded as 22830 and not 22551. That code was placed on the outpatient claim and the claim submitted. And lo and behold, the claim was rejected. It turns out that 22830 is on the inpatient-only list.

Well, the hospital called the MAC and were told that since they were within the timely filing period and they received a denial, they could simply submit an inpatient claim and get paid. The MAC never asked if there was an inpatient admission order in the record. The manager was not sure that this advice was sound, so asked for confirmation.

First things first: what happened here? The surgery that was actually performed was 22830. That is exploration of spinal fusion, a procedure that occurs for a patient who previously had a spinal fusion. So, submitting 22551 for prior authorization made no sense in this clinical situation. That was the manager’s first mission: figure out who dropped the ball. Who obtained the prior authorization, and what information did they have that would lead them to the completely wrong surgery? I would hope that the surgeon knew the patient previously had surgery. Maybe their policy is simply to designate every planned fusion as a 22551 simply to get a prior authorization, just in case. If so, that potentially creates a world of hurt when the planned surgery is actually an inpatient-only surgery, as happened here.

But the even bigger issue is that the MAC told them simply to rebill the stay as inpatient. Is this correct? Can every hospital bill inpatient-only surgeries as inpatient, even without an inpatient order? Everyone tries to ascertain that an inpatient-only surgery is being planned, and tries to get the order, but some slip through. Surgeries also change in the OR, and sometimes the surgeon ends up doing an inpatient-only surgery that was not planned. The Medicare Benefit Policy Manual allows the billing of inpatient admission without an order in rare and unusual circumstances if the intent to admit can be established, but this MAC seems to be going much, much further with their instruction to this hospital. No caveats about establishing intent. No caveats about how often this can occur.

I do think that CMS wants to pay hospitals for the work they do. I do think that CMS has established a process for hospitals to get paid for inpatient-only surgeries without an inpatient order, but it should not be a regular occurrence. I truly don’t know what to do with this advice from this MAC to this hospital. Since CMS won’t answer questions about specific cases, hospitals must rely on the MAC to give accurate and compliant recommendations.

I so want this recommendation to be true, but it seems almost too good to be true. I would love to hear from you if you got the same or a different response when you contacted your MAC on a similar issue.

Programming note: Listen to Dr. Ronald Hirsch every Monday as he makes his rounds on Monitor Mondays with Chuck Buck and sponsored by R1-RCM.

Facebook
Twitter
LinkedIn

Ronald Hirsch, MD, FACP, ACPA-C, CHCQM, CHRI

Ronald Hirsch, MD, is vice president of the Regulations and Education Group at R1 Physician Advisory Services. Dr. Hirsch’s career in medicine includes many clinical leadership roles at healthcare organizations ranging from acute-care hospitals and home health agencies to long-term care facilities and group medical practices. In addition to serving as a medical director of case management and medical necessity reviewer throughout his career, Dr. Hirsch has delivered numerous peer lectures on case management best practices and is a published author on the topic. He is a member of the Credentials Council and Government Affairs Committee of the American College of Physician Advisors, on the advisory board of the National Association of Healthcare Revenue Integrity, a member of the American Case Management Association, and a Fellow of the American College of Physicians. Dr. Hirsch is a member of the RACmonitor editorial board and is regular panelist on Monitor Mondays. The opinions expressed are those of the author and do not necessarily reflect the views, policies, or opinions of R1 RCM, Inc. or R1 Physician Advisory Services (R1 PAS).

Related Stories

CMS POSTS 80 New PCS Codes

CMS Posts 80 New PCS Codes

With the April 1 update, the Centers for Medicare and Medicaid Services (CMS) implemented 80 new PCS codes. To break it down, there are 24

Read More

Leave a Reply

Please log in to your account to comment on this article.

Featured Webcasts

Mastering Breast Biopsy Billing: Guidance-Driven Coding for Accurate Reimbursement

Breast biopsy procedures may be clinically straightforward but accurately translating them into compliant billing can be anything but. In this focused webcast, Shawn Blackburn, CPC, CPMA, CIC, CRC, CCS-P breaks down how imaging guidance, lesion count, laterality, and payer expectations all impact how these procedures should be reported. Through clear explanations and real-world scenarios, you’ll gain practical insight into aligning clinical workflows with billing requirements, avoiding common pitfalls, and ensuring your documentation supports accurate reimbursement and compliance.

May 21, 2026

Mastering OB GYN Coding Accuracy: Precision Coding for Compliance and Reimbursement

Gain clarity and confidence in OB‑GYN coding with this expert‑led webcast featuring Sherri L. Clayton, RHIT, CSS. You’ll learn how to apply global maternity package rules accurately, select the right CPT codes for procedures and visits, and identify documentation gaps that lead to denials. With practical guidance and real examples, this session helps you strengthen compliance, reduce audit risk, and ensure accurate reimbursement for women’s health services.

May 14, 2026

2026 ICD-10-CM/PCS Coding Clinic Update Webcast Series

Uncover essential coding insights with nationally recognized coding authority Kay Piper, RHIA, CDIP, CCS. Through ICD10monitor’s interactive, on‑demand webcast series, Kay walks you through the AHA’s 2026 ICD‑10‑CM/PCS Quarterly Coding Clinics, translating each update into practical, easy‑to‑apply guidance designed to sharpen precision, ensure compliance, and strengthen day‑to‑day decision‑making. Available shortly after each official release.

April 13, 2026

2026 ICD-10-CM/PCS Coding Clinic Update: Fourth Quarter

Uncover critical guidance on the ICD-10-CM/PCS code updates. Kay Piper reviews and explains ICD-10-CM/PCS coding guidelines in the AHA’s fourth quarter 2026 ICD-10-CM/PCS Coding Clinic in an easy to access on-demand webcast.

December 14, 2026

Trending News

Featured Webcasts

Reengineering Utilization Management: Building an Adaptive Model for the New Payer Era

Traditional utilization management models can no longer keep pace with regulatory shifts, payer scrutiny, and operational pressures. In this webcast, Tiffany Ferguson, LMSW, CMAC, ACM, ACPA-C, introduces an Adaptive Model strategy that modernizes UM through role specialization, technology-driven workflows, and proactive, team-based processes. Attendees will learn how to restructure programs to improve efficiency, strengthen clinical collaboration, and enhance financial performance in a rapidly changing healthcare environment.

May 20, 2026

Compliance for the Inpatient Psychiatric Facility (IPF-PPS): Minimizing Federal Audit Findings by Strengthening Best Practices

Federal auditors are intensifying their focus on inpatient psychiatric facilities, using advanced data analytics to spotlight outliers and pursue high‑dollar repayments. In this high‑impact webcast, Michael Calahan, PA, MBA, Compliance Officer and V.P., Hospital & Physician Compliance, breaks down what regulators are really targeting in IPF-PPS admissions, documentation, treatment and discharge planning. Attendees will learn practical steps to tighten processes, avoid common audit triggers and protect reimbursement and reduce the risk of multimillion-dollar repayment demands.

April 9, 2026

Mastering MDM for Accurate Professional Fee Coding

In this timely session, Stacey Shillito, CDIP, CPMA, CCS, CCS-P, CPEDC, COPC, breaks down the complexities of Medical Decision Making (MDM) documentation so providers can confidently capture the true complexity of their care. Attendees will learn practical, efficient strategies to ensure documentation aligns with current E/M guidelines, supports accurate coding, and reduces audit risk, all without adding to charting time.

March 31, 2026

The PEPPER Returns – Risk and Opportunity at Your Fingertips

Join Ronald Hirsch, MD, FACP, CHCQM for The PEPPER Returns – Risk and Opportunity at Your Fingertips, a practical webcast that demystifies the PEPPER and shows you how to turn complex claims data into actionable insights. Dr. Hirsch will explain how to interpret key measures, identify compliance risks, uncover missed revenue opportunities, and understand new updates in the PEPPER, all to help your organization stay ahead of audits and use this powerful data proactively.

March 19, 2026

Trending News

Celebrate Lab Week with MedLearn! Sign up to win one year of our Laboratory All Access Pass! Click here to learn more →

Happy National Doctor’s Day! Learn how to get a complimentary webcast on ‘Decoding Social Admissions’ as a token of our heartfelt appreciation! Click here to learn more →

BLOOM INTO SAVINGS! Get 25% OFF during our spring sale through March 27. Use code SPRING26 at checkout to claim this offer.

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 1 with code CYBER25

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 2 with code CYBER24