Disp fx of neck of left talus, subs for fx w nonunion

This code signifies a fracture of the neck of the left talus bone that is no longer in its anatomical alignment. Crucially, it indicates that the fracture has failed to heal properly after an initial treatment, leading to a nonunion.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed and treated displaced left talus neck fracture is presenting with evidence of nonunion, such as persistent pain, instability, or radiographic findings confirming the lack of bony healing. It should be used when the patient is still actively receiving care for the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the "left talus neck" and "displaced" nature of the fracture.
• Verify that this is a subsequent encounter for the fracture, not the initial treatment.
• Do not use this code if the fracture has healed or if it's the initial presentation of the fracture.