Turn to modifier 91 for repeat laboratory testing

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Note:  The following article synopsis was NOT provided by HCPro. It was created by Find-A-Code/innoviHealth.

Article Overview

This short article addresses a common coding question about repeat laboratory services and related NCCI edits. It discusses when the article’s referenced modifier applies in the context of laboratory CPT reporting, along with cautions about repeat testing scenarios that may arise during the same day. The piece is geared toward coders and billing staff who work with laboratory claims, CPT guidance, and NCCI-related edits.

Why This Topic Matters

Repeat laboratory testing can create claim edits and reporting errors if the service is submitted inconsistently. Understanding the article’s general guidance helps coding and billing teams review laboratory claims more accurately and avoid avoidable compliance issues.

What You Will Learn

  • How repeat laboratory testing is discussed in relation to NCCI edits
  • The general circumstances covered by the article for repeat testing on the same day
  • Why laboratory panel and component repeat scenarios are a common coding concern
  • What kinds of laboratory reporting situations the article focuses on

Who Should Read This

  • Medical coders
  • Billing staff
  • Revenue cycle professionals
  • Compliance staff
  • Laboratory billing teams

Codes Discussed

Modifiers Discussed


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