Billing and Coding: MolDX: Genetic Testing for Hypercoagulability / Thrombophilia (Factor V Leiden, Factor II Prothrombin, and MTHFR)

This billing and coding guidance requires selecting the appropriate CPT code, reporting exactly 1 unit of service, and including the specific DEX Z-Code identifier adjacent to the CPT code on designated claim fields for Part A and Part B ( Loop 2400/SV101-7/Item 19 for Part B; SV202-7/Block 80 for Part A). Do not add extra characters or information when entering the DEX Z-Code on SV101-7. Documentation must follow the stated electronic and paper claim field requirements to ensure correct processing.

"When entering the DEX Z-Code on the SV101-7 documentation field for Part B claims do not add any additional characters or information on that line."

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