Oth fx third MC bone, right hand, subs for fx w malunion

This code signifies a healed or healing fracture of the third metacarpal bone in the right hand that has united in a position that is not anatomically correct, leading to functional impairment. It specifically indicates that the patient is in a subsequent phase of care for this malunion.

Apply this code for patients presenting for follow-up care, physical therapy, or surgical intervention related to a previously fractured right third metacarpal that has healed with malunion. This is appropriate when the initial fracture treatment is complete, and the focus shifts to managing the consequences of the malunion.

• Always ensure documentation clearly specifies "right hand" and "third metacarpal."
• Verify that the encounter is for a subsequent phase of care for the malunion, not the initial treatment of the fracture.
• Pair with an external cause code if the original injury mechanism is relevant to the current encounter.