Nondisp fx of left tibial spine, subs for clos fx w nonunion

This code signifies a fracture of the tibial spine in the left knee that has not shifted from its original position, and the patient is presenting for follow-up care. Crucially, the fracture has failed to heal properly, indicating a nonunion complication.

Apply this code when a patient with a previously diagnosed nondisplaced left tibial spine fracture is seen for ongoing management, and imaging or clinical assessment confirms that the bone fragments have not united. This is appropriate for subsequent visits after the initial treatment, where nonunion is the primary concern for the fracture.

• Ensure documentation clearly states "nondisplaced" and specifies the "left" tibial spine.
• The "K" seventh character indicates a subsequent encounter for a closed fracture with nonunion.
• Always verify laterality and the specific type of fracture (e.g., tibial spine vs. plateau) from the physician's notes.