CPT Codes

The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.

DEX™ Diagnostics Exchange Z-Codes

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.

To Obtain ARUP Z-Codes

  • Navigate to ARUP Connect.
  • Log in utilizing your ARUP Connect account username and password
    • Contact the ARUP Connect administrator at your facility to obtain an ARUP Connect account username and password.
    • If you do not have an ARUP Connect account, contact ARUP clients services (800-522-2787) to determine the ARUP Connect administrator at your facility.
  • Find the Palmetto Z-Codes listed under the Connect Focus section.
  • Click on the plus button to expand the topic and follow the steps outlined.