Incomplete atypical femoral fracture, unspecified leg, 7thP

This code signifies a stress fracture of the femur that has not fully broken through the bone cortex, occurring in an unspecified leg. It specifically indicates that the patient is in a subsequent phase of care for this fracture, and the healing process has resulted in a malunion, meaning the bone fragments have healed in an abnormal alignment.

Apply this code when documentation clearly states an incomplete atypical femoral fracture with evidence of malunion during a follow-up visit. This typically occurs in patients on long-term bisphosphonate therapy or with other metabolic bone diseases. Supporting documentation should include imaging reports confirming an incomplete fracture and malunion, along with physician notes detailing the subsequent encounter for management.

• Ensure documentation specifies "incomplete" and "atypical" to differentiate from complete or typical femoral fractures.
• Verify the encounter is "subsequent" and not initial or sequela, and that malunion is explicitly noted.
• Do not use this code if the fracture is fully united or if the encounter is for the initial treatment of the fracture.