Welcome to DEX® Diagnostics Exchange Registry

The DEX® Diagnostics Exchange is a molecular diagnostic (MDx) test identification and policy management solution that connects payers and labs to bring clarity to MDx testing. MDx tests are uniquely identified and cataloged using DEX Z-Code® Identifiers – Palmetto GBA’s unique and proprietary 5-character alpha-numeric codes assigned within the DEX Diagnostics Exchange. The test registry catalog is available for reference and review by other stakeholders in the healthcare system.

Visit the website DEX® Diagnostics Exchange to learn more about the DEX Z-Code program.

Helpful topics:

  • DEX® Program overview
  • Frequently Asked Questions
  • Technical Assessment Forms

Register Your Organization

Submit your in-house tests for DEX Z-Code® assignment and/or see your reference lab's Z-Codes.

Register as a Public User

Browse the catalog for registered labs and their tests. DEX Z-Code identifiers are not visible to the Public User.

Already Registered?

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