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A CPT modifier is a two-digit code used to report or indicate that a service or procedure performed has been altered by some special circumstance but has not changed in its. definition or code.What are modifier codes?
Modifier codes for Medical Billing: Considerations and Examples. A modifier is a two digit code by which a reporting physician indicates that a performed service or procedure has been altered by some specific circumstance, though without a change to the basic procedure and its defining CPT code. Modifiers can be used with any CPT code.What is the CPT code for Medicare?
A: The CPT code for the annual routine physical exam for Medicare is 99387 (preventative medicine E/M new patient age 65 and older) or 99397 (preventative medicine E/M established patient age 65 or older). This is the same code for all insurance companies.