Billing and Coding: JW and JZ Modifier Billing Guidelines (A53024) - R6 - Effective January 10, 2023

This coverage article has been revised and published for notice under contract numbers: 01112 (NCA), 01182 (SCA), 01212 (HI and Territories), and 01312 (NV).

Effective Date: January 10, 2023

Summary of Article Changes:

Updated Article Billing and Coding: JW and JZ Modifier Billing Guidelines

Updated guidance in the Article Text section:

  • Changed the sentence: "This article addresses the required use of the JW and JZ modifier to indicate drug wastage."
  • Added: "Effective July 1, 2023, Medicare requires the JZ modifier on all claims for single-dose containers where there are no discarded amounts."
  • Added: To submit claims for a non-discarded claim, submit one complete claim line.
    • HCPCS code for drug given
    • JZ modifier to indicate no waste
    • Number of units given to the patient
    • Calculate submitted price for the amount given
  • Removed MLN Matter Article MM9603 under sources as this is no longer published.
  • Updated Title of Source #3: Discarded Drugs and Biologicals - JW Modifier and JZ Modifier Policy Frequently Asked Questions (

Updated CPT/HCPCS Modifier: added JZ modifier

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            Last Updated Thu, 02 Mar 2023 18:22:06 +0000