If you repeat a procedure during the global period (eg, reexcision for a positive margin), it is appropriate to use modifier -58 (staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period). If an unrelated procedure is performed during the global period, such as removing another lesion at a different site, modifier -79 (unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period) lets you report it.
There are 2 available modifiers that you might think twice before using. Modifier -76 (repeat procedure or service by same physician or other qualified health care professional) may be used if, for example, a wound opens and you have to sew it up again. The more common usage is more pedestrian; a second electrocardiogram reading on the same day is a common use.3 Modifier -78 (unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period) is used when something goes awry, such as an aneurysm repair that is bleeding postoperatively, necessitating a trip back to the operating room.4
How might these modifiers be used in dermatology? One example may be if a wound dehisces or needs to be seen for a bleeding issue that might necessitate opening and exploring the wound; if a patient has one of these problems after fixing the plumbing and hits himself with a wrench, use of these modifiers is reasonable. On the other hand, if the patient is waiting in your office to be picked up and the problem happens, using these modifiers may not be the wisest thing to do. Let common sense prevail!
What is CPT code 99024?
Likely a code you have never used in your private office, the descriptor for 99024 states “postoperative follow-up visit, normally included in the surgical package, to indicate that an E&M service was performed during a postoperative period for a reason(s) related to the original procedure,” which translates to “here for an included visit so why am I billing this and having the cost of a claim with no reimbursement?” Why indeed. You may be using it as a space holder—one more check and balance so no patient leaves the office without a superbill or its electronic equivalent being submitted to your billing staff—or you may simply never use it. The CMS is interested in it as a way to see if the visits embedded in global periods actually take place. This is especially important as CMS is legally mandated under the Medicare Access and CHIP Reauthorization Act of 2015 (MACRA)5 to see if these visits actually take place.6 There are billions of dollars paid out for visits that are part of the global package and this code is one way the government may track them. If you are not using this code at all, you might consider it, even if you do not submit a claim. Your staff will know you did not forget to report a service and the reporting of the code by you internally and it lets you document for the billing side of the practice that they were there and a code report has been performed and not simply forgotten.
Final Thoughts
Following this discussion of global periods and CPT code 99024, you may be wondering why you get paid what you do and how the visits all link together. The buzzword is intensity, and we will explore that concept and IWPUT (intraservice work per unit of time), which I have coined as meaning “I Will Persevere Until Then,” in the next column.