Stress fracture, right tibia, subs for fx w nonunion

This code signifies a stress fracture of the right tibia that has failed to heal properly after an initial treatment attempt. Nonunion indicates that the bone ends have not united and healing has ceased, requiring further intervention. This condition often results in persistent pain and functional impairment.

Apply this code when documentation specifies a stress fracture of the right tibia with evidence of nonunion, and the patient is receiving active treatment for the nonunion (e.g., surgical intervention, bone stimulator application). This code is appropriate for follow-up visits where the nonunion is being managed.

• Ensure documentation clearly states "nonunion" and specifies the "right tibia" and "stress fracture."
• Do not use this code for initial encounters or for routine follow-up of a healing fracture without nonunion.
• Always sequence this code after any codes for the underlying cause of the stress fracture, if applicable and still relevant.