Disp fx of distal phalanx of l thm, subs for fx w malunion

This code describes a situation where a patient has a displaced fracture of the distal bone in their left thumb, and the fracture has healed incorrectly, resulting in a malunion. This indicates a previous injury that did not align properly during the healing process, leading to a deformity or functional impairment.

Use this code when documenting a patient visit for ongoing management or treatment of a left thumb distal phalanx fracture that has healed with a malunion. This would apply to scenarios such as evaluating the extent of the malunion, planning corrective surgery, or managing residual symptoms.

• Ensure documentation clearly specifies "left" thumb and "distal phalanx."
• The "P" seventh character indicates a subsequent encounter for a fracture with malunion, so confirm this stage of healing is documented.
• Distinguish from nonunion (failure to heal) or routine follow-up for a healing fracture without complications.