Oth physl fx lower end of unsp femur, subs for fx w nonunion

This code signifies a fracture affecting the growth plate at the bottom of the thigh bone, where the specific location on the femur is not documented. Importantly, this is not the initial treatment for the fracture, and the bone has failed to heal properly, indicating a nonunion.

This code is appropriate for follow-up encounters for a pediatric or adolescent patient who previously sustained a physeal fracture of the distal femur. It is used when the physician documents that the fracture has not united and further treatment or assessment for the nonunion is being performed.

• Ensure documentation clearly states "nonunion" and that this is a subsequent encounter.
• Verify that the fracture is indeed physeal (growth plate) and at the lower end of the femur.
• Only use this code when the specific laterality (left/right) of the femur is not documented.