Billing and Coding: MolDX: Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy (ARVD/C) Testing

MolDX classifies ARVD/C multi-gene panel testing (including RYR2, TMEM43, DSP, PKP2, DSG2, DSC2, JUP) as a statutorily excluded service and it is not covered, including for diagnostic confirmation or cascade testing of family members. For claims processing, an ABN is not required; use modifier GY to indicate the statutorily excluded service (use GX if a voluntary ABN is issued), select the appropriate diagnosis, and include the DEX Z‑Code™ adjacent to the CPT code in the specified Part A and Part B claim fields.

"Genetic testing panels for arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) are statutorily excluded and are not covered."

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