Unsp trochan fx l femr, 7thN

This code signifies a complex, open fracture of the left femoral trochanteric region that has failed to heal properly. The "open" nature indicates a break in the skin, exposing the bone, and the "type IIIA, IIIB, or IIIC" specifies severe soft tissue damage. "Nonunion" confirms that the fracture fragments have not united after a typical healing period.

This code is appropriate for subsequent encounters when a patient with a previously diagnosed severe open trochanteric fracture of the left femur is being treated for nonunion. This would include follow-up appointments, surgical interventions for nonunion, or ongoing management of the unhealed fracture. It should be used after the initial treatment of the acute fracture.

• Ensure documentation clearly states "nonunion" and specifies the "left" femur and "trochanteric" region.
• Verify the fracture was initially classified as an open fracture type IIIA, IIIB, or IIIC.
• This code is for subsequent encounters, not the initial treatment of the acute fracture.