Unsp fx shaft of r femr, subs for opn fx type I/2 w nonunion

This code describes a situation where a patient has an unspecified fracture of the shaft of their right femur that was initially an open fracture (Type I or II), and the fracture has failed to heal properly in a subsequent encounter. Nonunion indicates that the bone ends have not united and healing has ceased.

Use this code for follow-up encounters where a patient with a previously diagnosed open fracture (Type I or II) of the right femoral shaft is being treated for nonunion. This applies when the specific type of shaft fracture (e.g., transverse, oblique) is not documented.

• Ensure documentation clearly states "nonunion" and specifies the right femur shaft.
• Verify the initial fracture was documented as an open fracture, Type I or II.
• This code is for subsequent encounters, not the initial treatment of the fracture.