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

This code describes a fracture of the trapezium bone in the wrist that is not displaced, meaning the bone fragments are still in their normal alignment. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "malunion" specifies that the bone has healed, but in an incorrect or deformed position.

This code is appropriate for patients presenting for ongoing treatment, evaluation, or management of a previously sustained nondisplaced trapezium fracture that has healed improperly. This could include scenarios where the patient is experiencing pain, limited range of motion, or other complications due to the malunion, and the provider is assessing the malunion or planning further intervention.

• Ensure documentation clearly specifies "nondisplaced" and "malunion" for the trapezium fracture.
• Verify that the encounter is for follow-up care of the fracture, not the initial treatment.
• Confirm the fracture location is the trapezium and the wrist is unspecified.