Add-on codes are exempt from the use of modifier -51.

Name: Add-on codes are exempt from the use of modifier -51.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

This statement is true. Add-on codes are designed to be used in addition to a primary code, and are not subject to the multiple procedure reduction rule that applies to other codes. Therefore, they do not require a modifier -51 to indicate that they are being reported as secondary procedures.

Add-On Codes Are Exempt from the Use of Modifier -51