Billing and Coding: MolDX: Molecular Assays for the Diagnosis of Cutaneous Melanoma

Molecular assays for diagnosis of cutaneous melanoma are billable when coded per the MolDX instructions: myPath assays use CPT 81479 for dates of service before 2019-07-01 and CPT 0090U on/after 2019-07-01; other assays may use 81479 only if no specific CPT/PLA exists. Only one test may be billed per patient per melanocytic lesion (report 1 UOS), and the appropriate DEX Z-Code and ICD-10-CM diagnosis code must be submitted in the specified claim fields.

"Molecular assays for the diagnosis of cutaneous melanoma are billable when submitted with the appropriate CPT/PLA code per these coding instructions."

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