Know the Compliance Risk for Certain Anesthesia Services 

A good healthcare compliance program is all about reducing risk, both in patient care and in financial reimbursement. This detailed blog by compliance expert, CJ Wolf, will bring you up to date on the compliance risks associated with certain anesthesia services.   

The OIG just published audit results and report (July 31, 2025) outlining the issues in this area. This article is a summary of that report, along with what it might mean for compliance professionals.  

The implications can be huge. For example, OIG concluded that Medicare paid $45.7 million for anesthesia services provided during the SPM procedure sessions that were at risk for noncompliance with Medicare requirements.  

What to Know About Anesthesia, Compliance and the Latest OIG Audit 

The U.S. Department of Health and Human Services Office of Inspector General (OIG) recently released a nationwide audit report highlighting potential improper payments for anesthesia services provided during select spinal injection procedures  

It is only under rare circumstances that Medicare Part B covers the cost of anesthesia during certain spinal pain management (SPM) procedures. In fact, a prior OIG audit found that 27% of billed anesthesia services during SPM procedures did not have supporting medical documentation that would justify the use of anesthesia.  Given these circumstances, the OIG decided to perform the more recent nationwide audit and publish its findings. 

Goal of OIG Audit Regarding Medicare Part B Payments 

The OIG’s goal in the audit was to identify Medicare Part B payments to physicians for anesthesia administered during selected SPM procedures that were at risk for noncompliance with Medicare requirements. 

The specific SPM procedures included in the audit were: 

• Facet-joint injections 
• Facet-joint denervation (aka radiofrequency ablation) 
• Epidural steroid injections 
• Sacroiliac joint injections 

Medicare Coverage Only in Rare Circumstances 

As mentioned, it is only in rare circumstances that Medicare covers the cost of certain anesthesia services provided during SPM procedures. The types of anesthesia services that could potentially be covered under these rare circumstances include: 

• Moderate sedation: Administration of a drug-induced depression of consciousness during which a patient responds purposefully to verbal commands, either alone or accompanied by light tactile stimulation. No interventions are required to maintain the enrollee’s airway, and spontaneous ventilation is adequate. 

• General anesthesia: Administration of a drug-induced loss of consciousness during which a patient is not arousable, even by painful stimulation. The ability to independently maintain breathing is often impaired. The patient often requires assistance in maintaining an open airway that allows for adequate airflow and proper oxygenation of the lungs. Positive pressure ventilation may be required because of depressed spontaneous ventilation or drug-induced depression of neuromuscular function. 

• Monitored anesthesia care: This is a specific anesthesia service for a diagnostic or therapeutic procedure. Indications for monitored anesthesia care include the need for deeper levels of analgesia (i.e., the inability to feel pain) and sedation than can be provided by moderate sedation. Monitored anesthesia care falls between moderate sedation and general anesthesia. 

MAC LCDs Published for Select SPM Procedures 

Medicare Part B claims are adjudicated and paid by Medicare Administrative Contractors (MAC).  MACs are charged with ensuring proper payment of claims.  They are to safeguard Medicare funds against improper medical coding and billing, fraud and abuse. One way they do this is by publishing local coverage determinations (LCDs) which outline when certain services are, or are not, covered. 

The MAC LCDs for the selected SPM procedures explain that the use of moderate sedation, general anesthesia, and monitored anesthesia care is usually unnecessary or rarely indicated for these procedures. However, individual consideration may be given in rare cases when documentation clearly established the need for such anesthesia. 

Audit to Confirm Compliance with Limited Coverage Rules 

Then, the OIG identified and selected a nonstatistical sample of 28 sessions where both anesthesia and the selected SPM procedures were billed. To verify compliance, the OIG obtained the supporting medical documentation for these sessions and had an independent medical reviewer determine whether the anesthesia was medically necessary and met the rare circumstances when Medicare would cover the anesthesia service.  

Medical Records Fail to Document Necessity 

For 20 of the 28 sampled sessions, the medical reviewer determined the supporting medical records did not document a rare circumstance in which administering anesthesia was reasonable or necessary for the specific SPM procedure.   

One such example included a session where a physician administered moderate sedation to a patient during an epidural steroid injection session. The medical records provided by the physician stated that this type of anesthesia was administered because of the patient’s anxiety, which is not a medically necessary indication meeting coverage criteria according to the LCD. The medical records also did not have evidence of failed oral sedation, which could have necessitated moderate sedation. 

The OIG stated they could not provide an overall estimate of improper payments for the entire audit period because the sample they used was a nonstatistical sample. However, they concluded that Medicare paid $45.7 million for anesthesia services provided during the SPM procedure sessions that were at risk for noncompliance with Medicare requirements. 

OIG Recommendations Include Provider Education 

One of the more significant recommendations the OIG made for CMS and the MACs is to  

• Educate providers on the coverage criteria 
• Review claims for improper billing of anesthesia services 

For providers, this means your MAC may begin auditing such claims. 

Compliance Tip for Anesthesia Billing 

Compliance professionals should assess how often their organizations bill anesthesia services at the same time as the SPM procedures and review the medical records to determine if the sessions meet the rare circumstances found in the LCD requirements for coverage of both services. 

More Resources about Compliance Risks 

Continue learning about the complexities of Medicare reimbursement and compliance in these other piece by CJ Wolf. 

Compliance Risks Associated with Outlier Payments 

In some circumstances, payers like Medicare, for example, will reimburse additional amounts beyond the prospective payment rate. These additional payments are called “outlier payments.” Outlier payments provide additional reimbursement for cases of exceptionally costly treatments.   

How to Avoid Compliance Risk in Peripheral Vascular Reimbursement   

Peripheral vascular disease (PVD) reimbursement is fraught with potential compliance pitfalls. This expert-written blog addresses the pressing concern of compliance risks in PVD reimbursement. It provides insights into regulatory trends, recent investigations and best practices. It provides insights into regulatory trends, recent investigations and best practices. 

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