Displ subtrochnt fx unsp femur, subs for clos fx w nonunion

This code signifies a fracture located in the subtrochanteric region of the femur, where the bone fragments are no longer in their normal alignment. The fracture has failed to heal properly (nonunion) and the patient is presenting for follow-up care or treatment of this ongoing issue. This specific code indicates that the fracture is closed, meaning the skin remains intact over the fracture site.

Use this code for patients presenting for subsequent treatment, evaluation, or management of a previously diagnosed displaced subtrochanteric femoral fracture that has developed nonunion. This applies when the initial treatment has failed to achieve bone healing and the fracture remains closed. Examples include clinic visits for nonunion management, surgical planning for revision, or ongoing conservative treatment for the unhealed fracture.

• Ensure documentation clearly states "nonunion" and that the fracture is "closed" and "displaced."
• Verify this is a "subsequent encounter" for the fracture, not the initial treatment.
• Confirm the fracture location is specifically subtrochanteric; do not use for intertrochanteric or shaft fractures.