Nondisp fx of dist phalanx of l thm, subs for fx w malunion

This code signifies a fracture of the furthest bone in the left thumb that has not shifted out of alignment, but is healing incorrectly. "Malunion" indicates that the bone fragments have joined, but in an abnormal position or with an undesirable angulation, potentially affecting thumb function. This specific code is used when the patient is receiving follow-up care for this malunion.

This code is appropriate for documenting subsequent encounters for a patient whose nondisplaced distal phalanx fracture of the left thumb has healed with malunion. This could include visits for ongoing assessment, physical therapy, or discussions regarding potential corrective procedures for the malunion. It should be used after the initial treatment of the fracture has concluded and the malunion has been identified.

• Ensure documentation clearly states "malunion" and specifies the left thumb's distal phalanx.
• Verify that the encounter is for follow-up care related to the malunion, not the initial fracture treatment.
• Do not use this code if the fracture is still open, displaced, or if the encounter is for nonunion.