Path fx in neopltc disease, l fibula, subs for fx w nonunion

This code signifies a fracture of the left fibula that occurred due to an underlying neoplastic (cancerous) process, and which has failed to heal properly (nonunion). This specific encounter is for ongoing management of the nonunion, not the initial treatment of the fracture.

Use this code for patients presenting for follow-up care, surgical intervention, or other treatment related to a left fibular nonunion that resulted from a pathological fracture secondary to cancer. Documentation should clearly state the fracture's pathological origin, its location in the left fibula, the presence of nonunion, and that this is a subsequent encounter.

• Always sequence the underlying neoplasm code first, followed by this code.
• Ensure documentation explicitly states "nonunion" and the pathological nature of the fracture.
• Distinguish carefully between initial, subsequent, and sequela encounters based on the patient's treatment phase.