Unsp fx lower end of unsp femur, subs for clos fx w nonunion

This code signifies a fracture located at the lower end of the femur, where the specific type of fracture is not documented. It indicates that the fracture is not healing as expected (nonunion) and the patient is presenting for follow-up care of this closed injury.

Use this code for subsequent encounters when a patient is being treated for a previously diagnosed, unspecified closed fracture of the distal femur that has failed to unite. This applies when the physician is managing the nonunion, such as during evaluations for potential surgical intervention or ongoing conservative management.

• Ensure documentation clearly states "nonunion" for the closed fracture.
• Verify that the encounter is for follow-up care of the fracture, not the initial treatment.
• Confirm the fracture location is the lower end of the femur, even if the specific type is unknown.