Nondisp pilon fx left tibia, subs for clos fx w malunion

This code signifies a follow-up visit for a patient who previously sustained a fracture of the distal end of the left tibia, specifically involving the weight-bearing surface of the ankle joint (pilon fracture). The fracture fragments are not aligned perfectly, indicating a malunion, but the skin remains intact over the injury site.

This code is appropriate for subsequent encounters where a patient is being managed for a previously diagnosed nondisplaced pilon fracture of the left tibia that has healed in an imperfect alignment (malunion). This would include visits for ongoing assessment of the malunion, planning for corrective surgery, or managing complications related to the malunion, as long as the fracture is still considered "closed."

• Ensure documentation clearly specifies "left tibia" and "pilon fracture" with "nondisplaced" characteristics.
• Verify the encounter is for a "subsequent encounter" and that "malunion" is explicitly documented.
• Confirm the fracture is "closed" (skin intact) to differentiate from open fractures.