Disp fx of acromial pro, unsp shldr, subs for fx w nonunion

This code signifies a fracture of the acromial process, a part of the shoulder blade, that is no longer in its correct anatomical alignment. The patient is in a subsequent phase of care, and the fracture has failed to heal properly, indicating a nonunion.

Apply this code when documentation confirms a displaced acromial process fracture in an unspecified shoulder, and the patient is being treated for the ongoing complication of nonunion. This would typically be used after initial treatment has failed to achieve bone healing.

• Ensure documentation explicitly states "nonunion" for the fracture.
• Verify the fracture is specifically of the acromial process and is displaced.
• Confirm this is a subsequent encounter for the fracture care.