Review the new test code registration phase 2 process

Beginning on Aug. 1, 2024, you may start registering tests that are in scope for phase 2 of the DEX Z-Codes® for certain molecular diagnostic test services on facility and professional claims. This is part of our recently updated Molecular Pathology Reimbursement Policy, Professional and Facility, which went into effect June 1, 2024.

We previously announced that the requirement for Z-codes to be included on certain molecular diagnostic testing facility and professional claims for the claims to be considered in reimbursement would be launched in phases.

Tests subject to phase 2 will need to include the appropriate Z-code on their claims beginning with dates of service on or after Nov. 1, 2024, to be considered for reimbursement.

Test code registration phases

We’ll send you reminders about when you should begin registering tests for each phase at least 30 days in advance of the start date of that phase. You may begin registering tests for phase 2 on Aug. 1, 2024.

Review the codes for each phase

You can review the test codes included in in phase 1  to ensure those are already registered.

We urge laboratories that haven’t registered with the Palmetto’s DEX® Diagnostics Exchange to begin their registration today by visiting dexzcodes.com.

Why use DEX Z-Codes?

Using the DEX Z-Code on a claim, with the appropriate CPT® code, will clearly identify the test being performed and eliminate some of the administrative burden you may encounter surrounding billing for these tests with CPT codes. This requirement applies to both facility and professional claims.

Questions?

For further guidance on the timeline for the registration of your tests, view the DEX Diagnostics Exchange test registration.

CPT^® is a registered trademark of the American Medical Association.

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