Stress fracture, right fibula, subs for fx w nonunion

This code signifies a stress fracture of the right fibula that has failed to heal properly, indicating a nonunion. The patient is currently receiving routine care during the healing or recovery phase for this specific fracture.

Apply this code when documentation clearly indicates a stress fracture of the right fibula with confirmed nonunion, and the patient is in a subsequent phase of care. This is appropriate for follow-up visits, cast changes, or ongoing management after the initial treatment of the nonunion has been established.

• Ensure documentation specifies "nonunion" and not just "delayed healing" or "malunion."
• Verify the laterality is "right fibula" and not left or unspecified.
• The 7th character "K" indicates a subsequent encounter for a fracture with nonunion; do not confuse with "P" for malunion or "D" for routine healing.