Oth fx shaft of rad, left arm, subs for clos fx w nonunion

This code signifies a fracture of the shaft of the left radius, excluding common types like Monteggia's or Galeazzi's, that has failed to heal properly. The patient is presenting for follow-up care or treatment related to this unhealed fracture, which was initially a closed injury.

Use this code for a patient returning for management of a left radial shaft fracture that has not united after a period of healing. This applies when the initial injury was a closed fracture and the current encounter addresses the nonunion. Examples include follow-up appointments for casting, bracing, or surgical planning for the nonunion.

• Ensure the documentation clearly specifies "nonunion" and that the initial fracture was closed.
• Verify the fracture location is the shaft of the radius and laterality is left.
• This "K" seventh character indicates a subsequent encounter for a closed fracture with nonunion; do not use for initial treatment or malunion.