Disp fx of navicular of unsp foot, subs for fx w nonunion

This code signifies a fracture of the navicular bone (also known as the scaphoid) in an unspecified foot, where the bone fragments are no longer in their anatomical alignment. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone has failed to heal completely after a reasonable period.

Apply this code when documenting ongoing treatment for a previously diagnosed displaced navicular fracture of the foot that has not healed. This includes scenarios where surgical intervention for nonunion is being planned or performed, or when conservative management for nonunion is continuing. It is appropriate for follow-up visits addressing the persistent lack of bone healing.

• Ensure documentation clearly states "nonunion" and "displaced" for the navicular fracture.
• Verify laterality (left or right foot) is not specified in the medical record; if it is, a more specific code should be used.
• This code is for subsequent encounters; an initial encounter for the same fracture would use a different code.