Disp fx of base of 4th MC bone, r hand, 7thP

This code signifies a fracture at the base of the fourth metacarpal bone in the right hand that has healed improperly, resulting in a malunion. The fracture was initially displaced, meaning the bone fragments were out of alignment. This code is used when the patient is receiving follow-up care for this specific complication.

Apply this code when a patient presents for treatment or evaluation of a previously sustained right fourth metacarpal base fracture that has healed in an unsatisfactory position. This includes scenarios where the malunion is causing ongoing pain, functional limitations, or requiring further intervention such as corrective surgery. It is appropriate for any encounter after the initial treatment of the fracture itself.

• Ensure documentation clearly specifies "malunion" and not "nonunion" or "delayed union."
• Verify the fracture location is the "base" of the "fourth metacarpal" and on the "right hand."
• Confirm this is a "subsequent encounter" for the malunion, not the initial fracture treatment.