AMA CPT® Assistant - 1991 Issue 1 (January)

Modifiers (Spring 1991)

Spring 1991 page 7 Coding Commentary Modifiers The CPT system uses modifiers as an integral part of the nomenclature system. This article will address the use of modifiers: when to use modifiers, and how to report modifiers. Definition - A modifier provides the means by which the reporting physician can indicate that a service or procedure that has been performed has been altered by some specific circumstance but not changed in its definition or code. Modifiers may be used in many instances. Some examples are:     To report a service has been increased or reduced.     To describe a service or...

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