Nov. 16, 2023
The Centers for Medicare and Medicaid Services (CMS) recently updated the FAQ for the use of JW and JZ modifiers. Beginning Oct. 1, CMS required the use of JW and JZ modifiers for all claims for drugs from single-use vials or single-use packages payable separately under Medicare Part B. The JW modifier is used to identify any discarded amounts. The JZ modifier is used to attest that there were no discarded amounts. CMS also posted a (non-exhaustive) list of codes subject to the modifier policy.

The American College of Radiology®(ACR®), the Radiology Business Management Association, RadNet, and RayUS met with CMS in September and advocated for the exclusion of imaging contrast agents and radiopharmaceuticals from the JW/JZ reporting requirement. CMS did however indicate the list likely will be updated semi-annually with newly identified codes.

If you have any questions, contact Christina Berry, ACR Team Lead, Economic Policy.

Related ACR News

  • Medicare Payment Increase in Final Budget Reconciliation Bill

    The bill includes a 2.5% increase to the Medicare Physician Fee Schedule for calendar year 2026.

    Read more
  • CMS Announces Prior Authorization Test Model

    WiSer is a six-year program that will begin in six states on January 1, 2026. It will introduce prior authorization using AI technology for a select number of services, including some IR procedures.

    Read more
  • Supreme Court Upholds Preventive Services Coverage

    ACR commends the Supreme Court’s ruling affirming the constitutionality of the structure and appointment process of the U.S. Preventive Services Task Force.

    Read more