Oth fx low end unsp femr, 7thN

This code signifies a fracture in the lower part of the femur, where the specific location is not documented. It indicates that the fracture was initially an open fracture classified as Type IIIA, IIIB, or IIIC, and the patient is now being seen for ongoing treatment due to the fracture failing to heal properly (nonunion).

Use this code for follow-up encounters when a patient presents with an unhealed open fracture of the distal femur, where the initial injury was severe (Type IIIA, IIIB, or IIIC) and the exact location within the lower end is unspecified. This code is appropriate when the nonunion is the primary focus of the current treatment.

• Ensure documentation clearly states "nonunion" and specifies an open fracture type IIIA, IIIB, or IIIC.
• Verify that the encounter is for subsequent care related to the nonunion, not the initial treatment of the fracture.
• Confirm that the fracture site is documented as the lower end of the femur, but without more specific anatomical detail.