Disp fx of nk of 4th MC bone, r hand, subs for fx w malunion

This code signifies a fracture of the neck of the fourth metacarpal bone in the right hand that has healed improperly, resulting in a malunion. The initial injury involved displacement of the bone fragments. This code is used when the patient is seen for ongoing care related to this malunited fracture.

Apply this code for follow-up encounters where a patient is being managed for a previously sustained, displaced right fourth metacarpal neck fracture that has healed in an unsatisfactory alignment. This includes visits for assessment of the malunion, planning for corrective surgery, or management of symptoms arising from the malunion.

• Ensure documentation clearly states "malunion" and specifies the "fourth metacarpal" and "right hand."
• Verify the encounter is for subsequent care of the fracture, not the initial treatment.
• Do not use this code if the fracture is still acute or if it has healed correctly.