Disp fx of prox phalanx of finger, subs for fx w malunion

This code signifies a displaced fracture of the proximal phalanx in any finger other than the thumb, index, middle, or ring finger, which is undergoing active treatment for a malunion. A malunion indicates that the fracture has healed, but in an anatomically incorrect or misaligned position. The "P" seventh character specifies a subsequent encounter for a fracture with malunion, meaning the patient is receiving ongoing care for this complication.

Use this code for follow-up visits where a patient is being managed for a malunited fracture of the proximal phalanx of the little finger, or any other unspecified finger. This applies when the physician is assessing the malunion, planning further intervention, or monitoring the progress of conservative management for the malunion. It is appropriate for encounters where the primary focus is addressing the previously healed, but misaligned, fracture.

• Ensure the documentation clearly specifies "malunion" and not "nonunion" (which uses a different seventh character).
• Verify the specific phalanx (proximal) and finger involved to ensure it's not the thumb, index, middle, or ring finger.
• Confirm this is a subsequent encounter for the malunion, not the initial treatment of the fracture or a sequela.