Fx unsp carpal bone, left wrist, subs for fx w malunion

This code signifies a fracture of an unidentifiable carpal bone in the left wrist that has healed improperly, resulting in a malunion. It indicates that the patient is receiving ongoing care for this previously sustained and now complicated fracture.

Apply this code when a patient presents for follow-up care, rehabilitation, or further treatment of a left wrist carpal bone fracture that has demonstrably healed in an anatomically incorrect position. This would include scenarios where surgical correction of the malunion is being planned or performed, or when the patient is being managed conservatively for the malunion.

• Ensure documentation clearly specifies "left wrist" and "malunion" for an unspecified carpal bone.
• This code is for subsequent encounters; an initial encounter for the malunion or the original fracture would use a different seventh character.
• Always review the medical record for specific carpal bone identification; if known, a more specific code should be used.