Unsp fracture of r low leg, subs for clos fx w nonunion

This code signifies a right lower leg fracture where the specific bone (tibia, fibula, or ankle) is not documented, and the fracture has failed to heal properly after an initial treatment. The fracture remains closed, meaning the skin is intact over the injury site, but the bone fragments have not united.

Apply this code for follow-up encounters when a patient presents with a previously diagnosed, unspecified closed fracture of the right lower leg that has not healed as expected. This is appropriate when the physician is managing the nonunion, such as during evaluations for potential revision surgery or ongoing conservative management.

• Ensure documentation clearly states "nonunion" and specifies the right lower leg.
• Confirm the fracture is closed; if open, a different code is required.
• This code is for subsequent encounters; an initial encounter would use a different seventh character.