Path fx in neopltc dis, unsp ankle, subs for fx w nonunion

This code signifies a fracture of an unspecified ankle bone that occurred due to an underlying neoplastic (cancerous) process, rather than trauma. The fracture has failed to heal properly, resulting in a nonunion, and the patient is presenting for follow-up care related to this unhealed fracture.

Use this code for patients with a documented pathological fracture of an unspecified ankle bone caused by a tumor, who are receiving ongoing treatment or evaluation for the nonunion of that fracture. Documentation should clearly state the neoplastic etiology of the fracture and the nonunion status.

• Requires documentation of both the pathological nature of the fracture and the nonunion complication.
• The "K" seventh character indicates a subsequent encounter for a fracture with nonunion.
• Always sequence the underlying neoplasm code first, followed by this code.