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

This code signifies a pathological fracture of an unspecified humerus, occurring as a complication of neoplastic disease, where the patient is receiving follow-up care for a fracture that has healed improperly (malunion). It indicates a chronic or ongoing issue related to the fracture's healing process, specifically in the context of a cancer-related bone weakness.

Use this code for patients presenting for treatment or evaluation of a humerus fracture that developed due to an underlying malignancy, and where the previous fracture has healed in an unsatisfactory alignment. Documentation should clearly state "pathological fracture," "neoplastic disease," "humerus," "malunion," and indicate a "subsequent encounter" for the fracture care.

• Ensure the documentation specifies "malunion" and not "nonunion" (which has a different code).
• Always sequence the underlying neoplastic disease code first, as it is the etiology of the pathological fracture.
• Verify the laterality of the humerus if specified in the documentation; this code is for an unspecified humerus.