Displaced unsp fx left great toe, subs for fx w nonunion

This code signifies a fracture of the left great toe (hallux) that is displaced, meaning the bone fragments are not properly aligned. The "unspecified" nature indicates that the specific type of fracture (e.g., transverse, oblique) is not documented. Crucially, this code is used when the fracture has failed to heal after a typical period, leading to a nonunion, and the patient is presenting for follow-up care related to this ongoing issue.

Use this code for a patient presenting for an office visit, hospital encounter, or other follow-up care for a previously diagnosed displaced fracture of the left great toe that has been determined to be a nonunion. This applies when the initial treatment has failed to achieve bone healing and the patient is being managed for this persistent condition.

• Ensure documentation clearly states "nonunion" and specifies the left great toe.
• Verify that the fracture is indeed displaced; if not, a different code for a non-displaced fracture with nonunion would be appropriate.
• This "K" seventh character indicates a subsequent encounter for a fracture with nonunion, not the initial treatment or routine healing.