Screw Removal

“I have an unusual situation that I am trying to figure out how to code. I had a patient return to the office in the global period after I performed a 1st metatarsophalangeal joint (MTPJ) arthrodesis. Although, the alignment of the fusion looks good, one of the non-locking screws advanced out of the bone and plate and started to tent the skin at the incision site at three weeks post operative. She is neuropathic and denied any trauma to the area. I removed the screw in the office with local anesthesia. Can I bill for unplanned screw removal in the office?”

A patient had a first metatarsophalangeal joint fusion/arthrodesis performed. Approximately 1 month following the procedure, one of the screws that was used to perform the procedure backed out of the bone and the plate that was applied to the 1st MPJ and started to apply pressure beneath the underlying skin at the site of the surgical incision. The screw needed to be removed. What would be the most appropriate CPT code to bill?