Unsp fx shaft of r fibula, subs for clos fx w nonunion

This code signifies an unstated type of fracture affecting the shaft of the right fibula that has not healed properly after a period of initial treatment. The fracture was initially a closed injury, meaning the skin remained intact, but the bone fragments have failed to unite.

This code is appropriate for follow-up encounters where a patient is being treated for a right fibular shaft fracture that has been diagnosed with nonunion. This includes situations where further intervention, such as surgery or bone stimulation, is being considered or performed to promote healing of the ununited fracture.

• Ensure documentation clearly states "nonunion" for a closed fracture of the right fibula shaft.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Do not use if the specific type of fracture (e.g., transverse, oblique) is documented; instead, use a more specific code.