A Tale of Two Pulleys: Can 26055 and 26160 Share the Same Bill?

Question:

Hello, I am inquiring about a bundling scenario my Physician and I are having some differences on and I wanted to get an opinion from you on it. We have cases where the trigger finger will be released at the level of the A1 pulley and the surgeon will lift the edge of the wound and take some dissection towards the A2 pulley and then excise said cyst from the A2 pulley. Our surgeon is wanting this unbundled for being separate issues and I am looking at it being done from the same incision seeing problems with Insurance. I will leave the documentation so nothing is left out for decision factor. Thank you in advance for your help.

After incision at distal palm overlying A1 pulley, veins protected, etc.:

".... The A1 pulley was incised longitudinally out to the proximal A2 pulley. proximally the fascial pulley was similarly divided. tendons were inspected, synovitis noted on the flexor tendons which was identified and debrided. Fraying tendon not present. There was no recurrent triggering with active flexion. In the area where the patient noted a mass was explored. This was along the proximal digital crease. By elevating the dorsal edge of the wound, dissection was taken out and a small retinacular cyst was noted to be coming off the A2 pulley. This was sharply excised...." They go on the close the incision

Answer:

I can appreciate the dilemma in this scenario.

In reviewing the AMA vignette for CPT code 26055, it describes releasing the trigger finger of the A1 pulley while "taking care to maintain the integrity of the A2 pulley." The American Academy of Orthopaedic Surgeons Global Service Data (GSD) states the "incision or resection of flexor tendon sheath, distant site (eg, 26055)" is not included in CPT 26160.

From a CPT perspective both can be billed together with supporting documentation, including the diagnosis header and indications paragraph of two distinct issues at different sites. Subset modifier XU (non-overlapping structure) would need to be appended.

*This response is based on the best information available as of 01/08/26.