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

This code describes a fracture of the left upper arm bone (humerus) that occurred due to weakened bone caused by a tumor or cancer, and which has failed to heal properly. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase, and "nonunion" specifies that the fracture fragments have not united after a sufficient healing period.

Use this code for follow-up encounters where a patient is being treated for a pathological fracture of the left humerus due to neoplastic disease, and the fracture has been documented as having nonunion. Documentation should clearly state the laterality (left humerus), the underlying cause (neoplastic disease), and the complication of nonunion.

• Ensure documentation specifies "nonunion" rather than "malunion" or "delayed healing" for accurate code assignment.
• Always sequence the underlying neoplastic disease code first, followed by this code.
• Verify laterality (left humerus) is clearly documented to avoid miscoding.