Unsp disp fx of surg neck of l humer, subs for fx w malunion

This code signifies a left humerus surgical neck fracture that was initially displaced but is now unspecified in its current displacement status. The key clinical feature is that the fracture has healed in a malunited position, meaning it has united but with an abnormal alignment or rotation. This code is specifically for a subsequent encounter where the malunion is being addressed or monitored.

Use this code for follow-up encounters of a patient with a previously treated, unspecified displaced fracture of the surgical neck of the left humerus that has resulted in malunion. This applies when the patient is still receiving care for the fracture, such as physical therapy, imaging to assess the malunion, or planning for corrective surgery. It is not for the initial treatment of the fracture.

• Ensure documentation clearly states "malunion" and specifies the "surgical neck" of the "left humerus."
• Verify that the encounter is subsequent to the initial treatment of the fracture.
• Do not use this code if the fracture is still in active treatment and has not yet united, or if it is a nonunion.