Unsp physl fx low end ulna, l arm, subs for fx w delay heal

This code signifies an unconfirmed growth plate fracture at the distal end of the left ulna that is not healing at the expected rate. It indicates that the patient is in a later stage of care for this injury, specifically addressing the complication of delayed union.

Apply this code when a patient presents for follow-up care of a previously diagnosed, but unspecified, physeal fracture of the left distal ulna, and clinical or radiological evidence confirms that the fracture healing process is slower than anticipated. This would be used after the initial encounter for the acute injury.

• Ensure documentation clearly specifies "delayed healing" for the ulna fracture.
• Verify the fracture location is the "lower end of ulna" and laterality is "left arm."
• Confirm this is a subsequent encounter, not the initial treatment for the acute fracture.