Oth fracture of oth metacarpal bone, subs for fx w malunion

This code signifies a fracture of any metacarpal bone, other than the thumb or little finger, that has previously been treated but has healed in an unsatisfactory position (malunion). The patient is currently receiving care for this malunited fracture, such as physical therapy, further imaging, or surgical planning for corrective osteotomy.

Apply this code when documentation indicates a patient is presenting for follow-up or treatment of a previously sustained and now malunited fracture of the second, third, or fourth metacarpal. This includes situations where the malunion is causing functional impairment or pain, and the patient is undergoing assessment or intervention for this specific complication.

• Ensure documentation clearly specifies "malunion" as the complication of the fracture healing.
• Verify the specific metacarpal bone involved is not the first (thumb) or fifth (little finger).
• Confirm this is a subsequent encounter for the fracture, not the initial treatment.