Incomplete atypical femoral fracture, right leg, 7thK

This code signifies an incomplete stress fracture of the right femur, specifically an atypical femoral fracture (AFF), that has failed to heal properly. It indicates that the patient is in a subsequent phase of care for this nonunion, meaning initial treatment has occurred but the bone has not united. AFFs are distinct from typical osteoporotic fractures and are often associated with long-term bisphosphonate use.

Apply this code when documentation confirms a patient is receiving ongoing treatment for a right incomplete atypical femoral fracture that has not healed. This includes follow-up visits, imaging studies to assess nonunion, or procedures aimed at promoting bone healing after initial management. The medical record must explicitly state "nonunion" and specify the right leg and "incomplete atypical femoral fracture."

• Ensure documentation clearly distinguishes between an "incomplete" and "complete" atypical femoral fracture.
• Verify laterality (right vs. left) is explicitly stated in the medical record.
• Confirm the encounter is for a "subsequent encounter for fracture with nonunion" and not an initial encounter or a routine follow-up for a healed fracture.