Oth fx of low end l rad, subs for opn fx type I/2 w nonunion

This code signifies a fracture in the lower part of the left radius that is not a typical Colles' or Smith's fracture, and it has failed to heal properly after an initial open fracture of type I or II. The patient is currently in a phase of treatment where the nonunion is being addressed, rather than the initial injury.

Apply this code when documenting follow-up care for a patient with a previously sustained open fracture (Type I or II) of the distal left radius, excluding Colles' and Smith's types, where the bone fragments have not united. This is appropriate for subsequent visits focused on managing the nonunion, such as monitoring, further surgical intervention, or cast changes.

• Ensure documentation clearly specifies "other" fracture type of the distal radius and confirms nonunion.
• Verify the initial injury was an open fracture type I or II; this code is not for closed fractures or other open fracture types.
• This "M" seventh character indicates a subsequent encounter for nonunion, so do not use it for initial treatment or routine healing.