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

This code signifies a fracture of an unspecified humerus that occurred due to an underlying neoplastic (cancerous) process, and the patient is presenting for follow-up care of this fracture which has failed to heal properly (nonunion). The neoplastic disease has weakened the bone, leading to the fracture.

Apply this code when documentation clearly indicates a pathological fracture of the humerus caused by cancer, and the patient is returning for ongoing management of a nonunion. This code requires explicit mention of the fracture's pathological nature, the specific bone involved (humerus), and the nonunion status during a subsequent encounter.

• Ensure documentation specifies "pathological fracture" and the underlying neoplastic disease.
• Verify the encounter type is "subsequent" and the fracture status is "nonunion."
• Always sequence the underlying neoplasm code first, followed by this code.