Unsp fx shaft of left tibia, subs for clos fx w malunion

This code indicates a follow-up encounter for a previously diagnosed, unspecified fracture located in the shaft of the left tibia. The fracture was initially closed, meaning the skin was not broken, and has subsequently healed in an abnormal alignment, known as malunion.

This code is appropriate when a patient presents for ongoing care, evaluation, or treatment of a left tibial shaft fracture that has healed incorrectly. This includes visits for assessing the functional impact of the malunion, planning corrective surgery, or managing complications related to the malaligned healing.

• Ensure documentation clearly specifies "left" tibia and "shaft" location.
• Confirm the encounter is "subsequent" and the fracture is "closed" with evidence of "malunion."
• Do not use for initial fracture treatment or for nonunion (failure to heal).