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  • Writer's pictureShelly Asbury

Modifier JZ

July 1, 2023 CMS Requires Modifier JZ for Zero Discarded Drugs Know the Difference Between JZ & JW Medicare claims filed billing separately payable drugs under Part B from single-dose containers that don’t report the JW or JZ modifier on or after July 1, 2023, may be subject to audits. Mandatory use of Modifier JZ is for all claims billing drugs separately and payable under Part B when there is NO discarded amount from a single-dose container or package. For the amount you administer, the claim line should include the billing and payment code, such as a HCPCS code, describing the given drug, the JZ modifier showing there were no discarded amounts, and the number of units administered in the units’ field. This is added to the requirement of January 1, 2017 when CMS implemented the uniform use of the JW modifier (Drug amount discarded/not administered to any patient) when processing Part B claims for drugs and biologicals from single-use vials or single-use packages. You must document the amount of discarded drugs in the medical records of Medicare patients. With this 2023 update, not there are no changes regarding the reporting of the JW modifier.

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