Nondisp fx of lunate, unsp wrist, subs for fx w malunion

This code signifies a fracture of the lunate bone in an unspecified wrist that is not displaced. The patient is in a subsequent phase of care, and the fracture has healed improperly, resulting in a malunion.

This code is appropriate for follow-up encounters where a previously diagnosed lunate fracture, without initial displacement, is now complicated by malunion. It indicates ongoing management of the improperly healed fracture, such as for evaluation of pain, reduced range of motion, or planning for corrective procedures.

• Ensure documentation clearly states "malunion" and specifies the lunate bone.
• Verify the encounter is "subsequent" and not an initial treatment for the fracture.
• Do not use if the fracture was displaced initially or if the wrist laterality is known.