Q&A: Reporting a repeat laboratory test as a distinct service using CPT codes

Article Overview

This article addresses a laboratory coding question involving a comprehensive metabolic panel and an additional blood glucose test reported on the same date. It discusses CPT reporting, NCCI laboratory panel edits, and the general circumstances under which a repeat test may be identified as separate for billing purposes. It is intended for coders, billers, and compliance staff who work with outpatient laboratory services, Medicare-related guidance, and laboratory edit rules.