Path fx in neopltc disease, l tibia, subs for fx w malunion

This code signifies a fracture of the left tibia that occurred due to an underlying neoplastic process, such as a tumor or metastatic disease, and is currently being treated for a malunion. A malunion indicates that the fracture has healed, but in an unsatisfactory position, leading to deformity or functional impairment. This specific code is used for follow-up care related to the malunion.

Apply this code when a patient presents for ongoing management of a left tibial fracture that was caused by cancer and has healed incorrectly. Documentation should clearly state the neoplastic etiology of the fracture, specify the left tibia as the affected bone, and confirm the presence of a malunion requiring further intervention or monitoring. This code is appropriate for subsequent visits after the initial treatment of the fracture.

• Always sequence the underlying neoplasm code first, followed by this code.
• Ensure documentation explicitly states "pathological fracture" and the specific bone (left tibia) and the healing complication (malunion).
• Distinguish from nonunion (M84.4-) and routine follow-up of a healed fracture (Z codes).