Unsp trochan fx l femur, subs for opn fx type I/2 w malunion

This code signifies a left-sided trochanteric fracture of the femur, where the specific type of trochanteric fracture (e.g., intertrochanteric or subtrochanteric) is not documented. The fracture was initially an open fracture of type I or II, and the patient is now being treated for a malunion, meaning the bone has healed in an incorrect anatomical position. This code is used for subsequent encounters, indicating ongoing care for this specific complication.

Use this code when a patient presents for follow-up care, rehabilitation, or further surgical intervention related to a malunited, unspecified trochanteric fracture of the left femur. The initial injury must have been an open fracture classified as Type I or Type II. This code is appropriate when the malunion is the primary focus of the current encounter.

• Ensure documentation clearly states "malunion" as the complication and specifies the left femur.
• Verify the original fracture was an open fracture, Type I or II, even if the current encounter is for the malunion.
• Do not use this code for initial encounters or for nonunion; specific codes exist for those scenarios.