Disp fx of base of nk of unsp femr, 7thR

This code describes a femoral neck fracture located at the base, which has shifted out of its normal anatomical position. Specifically, it indicates a subsequent encounter for an open fracture (where the bone broke through the skin) classified as type IIIA, IIIB, or IIIC, and has healed improperly, resulting in malunion.

Use this code when documenting follow-up care for a patient who previously sustained an open displaced fracture of the base of the femoral neck. This applies when the fracture has healed in an unsatisfactory position, leading to malunion, and the initial open fracture was severe (Gustilo-Anderson type IIIA, IIIB, or IIIC). This code would be appropriate for patients undergoing treatment for complications related to the malunion, such as corrective osteotomy.

• Ensure documentation clearly specifies "subsequent encounter" and the presence of malunion.
• Verify the original open fracture was classified as Gustilo-Anderson type IIIA, IIIB, or IIIC.
• Do not use for initial encounters or for fractures without malunion.