Nondisp fx of navicular of r foot, subs for fx w nonunion

This code signifies a non-displaced break in the navicular bone (also known as the scaphoid) located in the right foot. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and "nonunion" specifies that the bone fragments have failed to heal together after a typical healing period.

Apply this code when a patient presents for ongoing management of a previously diagnosed, non-displaced navicular fracture of the right foot that has not successfully united. This would include scenarios such as follow-up appointments for casting changes, physical therapy, or surgical planning related to the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the right foot navicular bone.
• Verify the fracture was initially non-displaced; displaced fractures would use a different code.
• Confirm this is a subsequent encounter for the fracture, not the initial treatment.