Nondisp subtrochnt fx l femr, 7thN

This code describes a situation where a patient has a subtrochanteric fracture of the left femur that was initially nondisplaced, but has failed to heal properly (nonunion). Furthermore, this specific encounter involves an open fracture, classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and contamination.

Use this code for follow-up encounters of a patient with a previously diagnosed nondisplaced subtrochanteric fracture of the left femur that is now complicated by nonunion. This is specifically for open fractures classified as type IIIA, IIIB, or IIIC, requiring ongoing management or treatment for the nonunion and open wound.

• Ensure documentation clearly specifies "nondisplaced" at the initial injury and "nonunion" at the current encounter.
• Verify the left femur is the affected bone and the fracture is subtrochanteric.
• Confirm the open fracture type (IIIA, IIIB, or IIIC) is explicitly documented for accurate coding.