Billing and Coding: MolDX: Molecular Testing for Identification and Management of Hereditary Transthyretin Amyloidosis

This billing/coding guidance requires selection of the appropriate CPT and ICD-10-CM codes and mandates reporting the DEX Z‑Code adjacent to the CPT code on specified claim fields for Part A and Part B. Only one molecular test may be billed per patient and the claim must show exactly 1 unit of service; follow LCD L39948 for clinical coverage criteria.

"No clinical indications are specified in this billing/coding guidance; clinical coverage and test appropriateness follow the associated LCD MolDX L39948."

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