"Open Treatment is used when the fracture is surgically opened (exposed to the external environment). In this instance, the fracture (bone) is open to view, and internal fixation (pins, screws, etc.) MAY be used. Open treatment can also mean that a remote site (not directly over the fracture) is opened to place a nail (intramedullary) across the fracture site."
Buck, Carol J., and Jackie L. Grass. "Chapter 8 Musculoskeletal System." Next Step - Advanced Medical Coding and Auditing, 2016 Edition. St. Louis: Elsevier Saunders, 2016
CPT Lay Description for 26765 is "The physician performs open reduction of a distal phalangeal fracture of the finger or thumb. The physician uses an x-ray to determine the position and severity of the defect. An incision is made on the overlying skin to expose the fracture and the bones are reapproximated. A wire or plate MAY be placed for internal fixation. The incision is sutured in layers and the hand is splinted."
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