Oth osteopor w crnt path fx, l humer, subs for fx w malunion

This code signifies a patient presenting with osteoporosis that has led to a pathological fracture of the left humerus. The fracture is currently healing but has resulted in malunion, meaning it has healed in an incorrect or deformed position. This particular encounter is for ongoing management of this malunited fracture.

Apply this code when documentation specifies a patient with osteoporosis, a current pathological fracture of the left humerus, and evidence of malunion. This code is appropriate for follow-up visits where the malunion is being addressed or monitored, after the initial treatment of the fracture. The "P" seventh character indicates a subsequent encounter for a fracture with malunion.

• Ensure documentation clearly states "malunion" and not just "nonunion" or "delayed healing," as these have different seventh characters.
• Verify the laterality (left humerus) and the type of fracture (pathological due to osteoporosis).
• Always sequence the underlying osteoporosis code (e.g., M81.8) before this fracture code, if applicable and still active.