Nondisp subtrochnt fx r femr, 7thN

This code signifies a previously treated subtrochanteric fracture of the right femur, which was initially an open fracture of type IIIA, IIIB, or IIIC, and has now developed a nonunion. A nonunion indicates that the bone fragments have failed to heal together after a sufficient period.

This code is used when a patient presents for ongoing management or treatment of a right subtrochanteric femoral fracture that was initially open (severe soft tissue damage) and has not healed. It specifically applies to subsequent encounters where nonunion is the primary issue being addressed.

• Ensure documentation clearly specifies "nonunion" and the initial open fracture type (IIIA, IIIB, or IIIC).
• Verify laterality (right femur) is explicitly stated in the medical record.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different code.