Fx unsp part of nk of unsp femr, subs for clos fx w nonunion

This code signifies a previously sustained, closed fracture of the femoral neck, where the bone fragments have failed to heal properly, resulting in a nonunion. The specific location of the fracture within the femoral neck is not documented, nor is the laterality of the femur. This indicates ongoing management for a complication of the initial injury.

This code is appropriate for encounters where a patient is being treated for a nonunion of a closed femoral neck fracture that was previously diagnosed and treated. This includes follow-up visits, surgical interventions to address the nonunion, or conservative management attempts for the persistent lack of healing.

• Ensure documentation clearly states "nonunion" and that the fracture was initially "closed."
• Verify that the encounter is for subsequent care of the fracture, not the initial treatment.
• If laterality (left/right) or a more specific part of the femoral neck is documented, a more specific code should be chosen.