Pathological fracture, left foot, subs for fx w delay heal

This code signifies a fracture of the left foot that occurred due to a pre-existing disease process, rather than trauma. The patient is currently receiving care for this fracture, and its healing is progressing slower than expected. This indicates ongoing management for the delayed union of the pathological fracture.

Apply this code when documentation specifies a left foot fracture resulting from an underlying condition (e.g., osteoporosis, tumor, metabolic bone disease) and the patient is in a subsequent phase of care where healing is delayed. This code is appropriate for follow-up visits, cast changes, or ongoing treatment related to the slow-healing pathological fracture.

• Ensure documentation clearly states the fracture is "pathological" and specifies "delayed healing" for the left foot.
• Always sequence this code after the underlying disease causing the pathological fracture (e.g., M80.08XA for age-related osteoporosis with current pathological fracture, vertebra).
• Distinguish from nonunion (M84.475K) or malunion (M84.475P), which represent different stages of healing complications.