Path fracture, left finger(s), subs for fx w nonunion

This code signifies a fracture of the left finger(s) that occurred due to an underlying disease process (pathological) rather than trauma, and is currently in a state of nonunion. Nonunion indicates that the fracture has failed to heal completely after an appropriate period, and the patient is receiving active treatment for this complication.

Apply this code when documentation clearly states a pathological fracture of the left finger(s) and the patient is being seen for ongoing management of a confirmed nonunion. This is used for subsequent encounters after the initial treatment of the fracture has begun. Supporting documentation would include imaging reports confirming nonunion and physician notes detailing treatment for the nonunion.

• Ensure documentation specifies "pathological fracture" and not just a simple fracture.
• Verify the laterality (left finger(s)) and the encounter type (subsequent encounter for nonunion).
• Always sequence this code after the underlying disease causing the pathological fracture, if applicable and still active.