Nondisp fx of trapezoid, unsp wrist, subs for fx w nonunion

This code indicates a fracture of the trapezoid bone in an unspecified wrist that is not displaced. The "K" seventh character signifies that the patient is in the healing phase, but the fracture is failing to unite properly (nonunion).

This code is appropriate for follow-up encounters where a patient with a previously diagnosed, nondisplaced trapezoid fracture of an unspecified wrist is being treated for a nonunion. This would typically involve ongoing management, such as further imaging, casting adjustments, or consideration of surgical intervention due to the lack of healing.

• Ensure documentation clearly states "nonunion" for the trapezoid fracture.
• Verify that the fracture is explicitly noted as "nondisplaced" and the wrist laterality is not specified.
• Confirm this is a subsequent encounter for the fracture, not the initial treatment.