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Drugs and biologicals Part B: Using the JW and JZ modifiers

December 23, 2025
The JW and JZ modifier policy applies to all drugs separately payable under Medicare Part B described as supplied in a “single-dose” containers. Read this article to understand how these modifiers should be billed.

Submitting high dollar claims for single use vials

April 7, 2026
Read this article to learn more about submitting high dollar claims for single use vials.

Current processing issues

April 7, 2026
These tables display processing issues that are being worked currently or have been resolved recently.

Beneficiary-submitted claim filing instructions

April 8, 2026
This article provides beneficiary guidelines for submitting claims rendered in Florida, U.S. Virgin Islands, or Puerto Rico.

Method II critical access hospitals: Reprocessing certain claims with reassigned billing rights

April 8, 2026
Breaking news for critical access hospitals (CAHs): CMS has directed MACs to immediately turn off reason codes 31006 and 31007 to give providers time to submit all method II reassignments to their Part A CAHs promptly. Read further to learn…

Critical access hospital (CAH) method II professional reassignments

April 8, 2026
CAH Part A Method II claims for professional services will return to provider (RTP) if a reassignment isn’t in PECOS. Watch the on-demand learning video, "CAHs Method II Professional Reassignments," for instructions to add reassignments.
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