Unsp fx third MC bone, right hand, subs for fx w malunion

This code signifies a previously sustained, unspecified fracture of the third metacarpal bone in the right hand that is now healing improperly, resulting in a malunion. The patient is currently under active treatment for this complication.

This code is appropriate for follow-up encounters where a patient is being managed for a right third metacarpal fracture that has healed in an anatomically incorrect position. This includes situations where surgical intervention or other treatments are being considered or performed to correct the malunion.

• Requires an external cause code (e.g., V00-Y99) to describe the circumstances of the injury.
• Do not use for initial encounters or for fractures healing normally.
• Consider additional codes for any associated complications or procedures performed to address the malunion.