Skip Navigation
United States Flag

An official website of the United States government. Here's how you know >

Change Font Size

Anesthesia Services – Payments for Personally Performed Services

Physicians must report the appropriate anesthesia modifier code to denote whether the service was personally performed or medically directed (Centers for Medicare & Medicaid Services, Medicare Claims Processing Manual, Pub. No. 10004, Ch. 12, § 50). Reporting an incorrect service code modifier on the claim as if services were personally performed by an anesthesiologist when they were not will result in Medicare paying a higher amount. The service code “AA” modifier is used for anesthesia services personally performed by an anesthesiologist, whereas, the “QK” modifier limits payment to 50 percent of the Medicare allowed amount for personally performed services claimed with the AA modifier. Payments to any service provider are precluded unless the provider has furnished the information necessary to determine the amounts due (SSA § 1833(e)). We will review Medicare Part B claims for personally performed anesthesia services to determine whether they were supported in accordance with Medicare requirements. We will also determine whether Medicare payments for anesthesia services reported on a claim with the AA service code modifier met Medicare requirements.

Announced or Revised Agency Title Component Report Number(s) Expected Issue Date (FY)
Nov-16 Centers for Medicare & Medicaid Services Anesthesia Services – Payments for Personally Performed Services Office of Audit Services W-00-17-35706; various reviews 2018

Office of Inspector General, U.S. Department of Health and Human Services | 330 Independence Avenue, SW, Washington, DC 20201