MAY 31, 2015
Appending modifier -58
Question: When do I append modifier -58?
Answer: It is appropriate to append procedures with modifier -58 in several scenarios. These include situations when:
- The current procedure is more extensive than the previous;
- A therapeutic procedure follows a diagnostic procedure; or
- The current procedure was planned and documented at the time of the first procedure.
You should not append modifier -58 to any procedures with phrases such as “one or more sessions." There is no payment reduction to the procedure when you append modifier -58. A new global period begins.