Displ seg fx shaft of humer, l arm, subs for fx w delay heal

This code signifies a fracture of the shaft of the left humerus that has broken into at least three pieces (segmental) and is no longer in its proper anatomical alignment (displaced). The patient is currently in a phase of treatment where the fracture is not healing at the expected rate.

Apply this code for follow-up encounters where a patient with a previously diagnosed displaced segmental fracture of the left humeral shaft is presenting with evidence of delayed union. This would include situations where imaging shows incomplete callus formation or persistent fracture lines beyond the typical healing timeframe.

• Ensure documentation explicitly states "delayed healing" or similar terminology for this specific fracture.
• Verify the fracture is indeed segmental and displaced, and located in the shaft of the left humerus.
• This code is for subsequent encounters, not the initial treatment of the fracture.