Billing and Coding: MolDX: Next-Generation Sequencing Lab-Developed Tests for Myeloid Malignancies and Suspected Myeloid Malignancies

This article provides billing and coding instructions for reporting MolDX Next-Generation Sequencing lab-developed tests for myeloid malignancies: report the appropriate CPT and ICD-10-CM codes, include the DEX Z-Code adjacent to the CPT in specified claim fields for Part A and Part B, and submit 1 unit of service per test. For Part B SV101-7 entries, do not add extra characters or information on the line; placement details differ by electronic (837P/837I) versus paper (Box 19/Block 80/UB04) claim forms.

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

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