Complete transverse atyp femoral fracture, unsp leg, 7thK

This code signifies a complete break across the femur, occurring atypically, where the fracture has failed to heal properly. It specifically indicates that the patient is receiving ongoing treatment for this unhealed fracture, rather than initial care. This type of fracture is often associated with long-term bisphosphonate use.

Apply this code when a patient presents for follow-up care, surgical intervention, or other treatment related to a previously diagnosed complete transverse atypical femoral fracture that has not achieved union. Documentation should clearly state "nonunion" and specify that the encounter is for subsequent management of the fracture.

• Ensure documentation explicitly states "nonunion" and "subsequent encounter" for accurate code assignment.
• Distinguish from initial encounters for the fracture or encounters for routine healing (which would use a different seventh character).
• Always review the medical record for laterality (left, right, or unspecified) and completeness of the fracture.