New CMS Radiology Modifier “CT”

by Experian Health 1 min read April 19, 2016

Beginning in 2016, claims for CT (Computed Tomography) scans identified by the CPT codes listed  below  (and by successor codes) that are furnished on non-NEMA (National Electric Manufacturers Association) Standard XR-29-2013-compliant CT scans must include modifier “CT” that will result in an applicable payment reduction.

  • 70450-70498
  • 71250-71275
  • 72125-72133
  • 72191-72194
  • 73200-73206
  • 73700-73706
  • 74150-74178
  • 74261-74263
  • 75571-75574

CMS Change Request (CR) 9250 informs providers that effective January 1, 2016, a payment reduction of 5 percent applies to CT services furnished on equipment that is inconsistent with the CT equipment standard and for which payment is made under the physician fee schedule.

When such payment reductions are made, MACs will supply:

  • Claim Adjustment Reason Code 237 – Legislated/Regulatory Penalty. At least one Remark Code must be provided (may be comprised of either the NCPDP Reject Reason Code, or Remittance Advice Remark Code that is not an ALERT.)
  • Remittance Advice Remark Code N759 – Payment adjusted based on the National Electrical Manufacturers Association (NEMA) Standard XR-29-2013; and
  • Group Code: CO (contractual obligation)

The payment reduction increases 15 percent in 2017 and subsequent years. System attestation by providers will be verified through the periodic supplier accreditation process.

Read the official instruction here: https://www.cms.gov/Regulations-and-Guidance/Guidance/Transmittals/Downloads/R3402CP.pdf

Related Posts

Medicaid redetermination in 2027: what hospitals and providers should prepare for

In this blog post, experts at Experian Health provide an update on Medicaid redetermination and ways providers can mitigate the effects.

November 12, 2026 by Experian Health
Big ideas, real impact: inside Experian Health’s High-Performance Summit 2026

At Experian Health’s 2026 High-Performance Summit in Dallas, revenue cycle leaders explored practical AI use cases, denial prevention and Medicaid redetermination.

November 11, 2026 by Experian Health
State of Claims 2026: Why denials remain an uphill climb

Experian Health's State of Claims 2026 survey finds that the denial rate has barely moved: 40% of providers report 10% or more claims denied.

November 6, 2026 by Experian Health

Subscribe to our blog

Enter your name and email for the latest updates.

Click here to view Experian’s U.S. Consumer Data Privacy Notice.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Subscribe to the Experian Health blog

Get the latest industry news and updates!
Subscribe