Oth fx lower end of left femur, subs for clos fx w malunion

This code signifies a malunion of an "other" type of fracture at the lower end of the left femur, specifically during a subsequent encounter. Malunion indicates that the fracture has healed, but in an unsatisfactory position, potentially leading to functional impairment. The "other" classification suggests it's not a supracondylar, intercondylar, or condylar fracture.

Use this code for patients presenting for follow-up care of a previously treated closed fracture of the lower left femur that has healed in a misaligned position. This applies when the malunion is documented, and the patient is no longer in the initial healing phase but is receiving ongoing management for the healed, malaligned fracture.

• Ensure documentation clearly specifies "malunion" and not just delayed healing or nonunion.
• Verify the fracture site is the lower end of the femur and laterality is left.
• Confirm this is a subsequent encounter for a closed fracture, as open fractures have different coding pathways.