Path fx in neopltc disease, r fibula, subs for fx w malunion

This code signifies a fracture of the right fibula that occurred due to an underlying neoplastic (cancerous) process, which has subsequently healed incorrectly (malunion). It indicates that the patient is receiving ongoing care for this specific complication of the pathological fracture.

Apply this code when a patient presents for follow-up treatment or management of a right fibular fracture caused by cancer, and the fracture has healed in a misaligned or deformed position. Documentation should clearly state the neoplastic etiology of the fracture, the specific bone involved (right fibula), and the presence of malunion during a subsequent encounter.

• Ensure documentation specifies "subsequent encounter" for fracture care.
• Always code the underlying neoplasm first, followed by this code.
• Distinguish from nonunion (M84.4-) or routine fracture follow-up without malunion (M84.563D).