Billing and Coding: MolDX: NRAS Genetic Testing

This billing and coding guideline specifies claim requirements for MolDX NRAS genetic testing: report the appropriate CPT code with one unit of service, include the correct ICD-10-CM diagnosis code, and place the DEX Z‑Code™ adjacent to the CPT code in the specified Part A or Part B claim fields. These instructions are intended to be used alongside LCD L36797 to ensure proper claim submission.

"Report the appropriate CPT code that corresponds to the NRAS genetic testing service being billed."

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