Disp fx of triquetrum bone, l wrist, subs for fx w malunion

This code indicates a fracture of the triquetrum bone in the left wrist that has healed improperly, resulting in a malunion. This specific code is used when the patient is receiving follow-up care for this previously treated, but now malunited, fracture.

Apply this code when a patient presents for ongoing management, evaluation, or treatment of a left triquetrum fracture that has healed in an anatomically incorrect position. This includes scenarios such as pain management, functional assessment, or planning for corrective surgery related to the malunion.

• Always confirm laterality (left wrist) and the specific bone involved (triquetrum).
• Ensure documentation clearly states "malunion" and that this is a subsequent encounter for the fracture.
• Do not use for initial treatment or for nonunion; separate codes exist for those scenarios.