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

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

Use this code for patients presenting for follow-up care, rehabilitation, or further treatment of a right femoral fracture that was caused by cancer and has healed in an unsatisfactory alignment. Documentation should clearly state "pathological fracture," specify the right femur, confirm a neoplastic etiology, and explicitly mention "malunion" in the context of a subsequent encounter.

• Ensure documentation specifies "right femur" and "malunion" for accurate laterality and complication.
• Always sequence the underlying neoplasm code first, followed by this code, as the fracture is a manifestation of the cancer.
• Distinguish from nonunion (M84.451P) or routine healing (M84.551D for subsequent encounter without malunion/nonunion).