Unsp fx r low leg, subs for opn fx type I/2 w nonunion

This code describes a situation where a patient has an unconfirmed fracture in their right lower leg, and they are returning for follow-up care. The initial injury was an open fracture of Gustilo type I or II, and the fracture has failed to heal properly (nonunion).

This code is appropriate for subsequent encounters when a patient with a previously diagnosed open fracture (Type I or II) of the right lower leg presents with evidence of nonunion, and the specific bone involved in the lower leg fracture (tibia, fibula, or ankle) has not been documented. This would be used during follow-up visits, cast changes, or evaluations for further treatment of the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the right lower leg.
• Verify the initial fracture was an open fracture type I or II.
• Only use this code when the specific bone of the lower leg fracture is not identified in the documentation.