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

This code signifies a follow-up encounter for an open fracture of the shaft of the right radius, specifically an open fracture type I or II, where the bone has failed to heal properly (nonunion). The exact location of the fracture on the radial shaft is not specified.

Use this code when a patient presents for ongoing treatment or evaluation of a right radial shaft fracture that was initially open (type I or II) and has subsequently developed a nonunion. This applies to situations like follow-up appointments for surgical repair of the nonunion, casting changes, or monitoring of the nonunion's progress.

• Ensure documentation clearly specifies "nonunion" and "subsequent encounter."
• Verify the fracture is of the right radius shaft and was initially an open fracture type I or II.
• Do not use for initial encounters or for malunion; separate codes exist for those scenarios.