Unsp fracture of unsp femur, subs for clos fx w nonunion

This code signifies a follow-up encounter for a fracture of the femur where the specific location and type of fracture are not documented. The fracture has not healed properly, indicating a nonunion, and the skin over the fracture site remains intact.

This code is appropriate for subsequent visits when a patient is being managed for a previously diagnosed femoral fracture that has failed to unite, and the initial fracture details (e.g., shaft, condyle, intertrochanteric) are not specified in the current encounter's documentation. It is used when the fracture is closed and the focus of the encounter is on the nonunion.

• Ensure documentation clearly states "nonunion" and "closed fracture" for accurate code assignment.
• Avoid using this code if a more specific anatomical site of the femoral fracture is documented (e.g., S72.3XXK for shaft fracture).
• Verify that this is a subsequent encounter, not the initial treatment for the nonunion.