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

This code signifies a displaced fracture of the trapezoid bone, one of the carpal bones in the wrist, that has failed to heal properly. The "subsequent encounter" indicates the patient is receiving follow-up care for this specific injury, and "nonunion" means the bone fragments have not united after a reasonable healing period.

This code is appropriate for patients presenting for ongoing management of a trapezoid fracture where the bone has not healed, despite previous treatment. This could include evaluations for surgical intervention, casting changes, or other treatments aimed at promoting union after an initial attempt at healing has failed.

• Ensure documentation clearly specifies "displaced" and "nonunion" for the trapezoid fracture.
• Verify the encounter is for follow-up care, not the initial treatment of the fracture.
• Confirm the laterality (left, right, or unspecified) of the wrist is documented to ensure the most specific code is chosen.