Displaced dome fx left talus, subs for fx w nonunion

This code signifies a fracture of the dome (superior articular surface) of the left talus that is out of alignment, and the patient is presenting for ongoing treatment of the fracture, which has failed to heal properly. This indicates a complication where the bone fragments have not united after a typical healing period.

Apply this code when documenting follow-up care for a patient with a previously diagnosed displaced dome fracture of the left talus who is experiencing nonunion. This would include visits for continued management, evaluation of nonunion, or planning for further interventions such as bone grafting or revision surgery.

• Ensure documentation clearly states "nonunion" and specifies the left talus dome.
• Verify that the fracture was initially displaced, as this affects the specificity of the code.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different code.