Greenstick fx shaft of left ulna, subs for fx w malunion

This code signifies a greenstick fracture affecting the shaft of the left ulna, which is a partial break in the bone common in children. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "malunion" specifies that the bone has healed, but in an abnormal or misaligned position.

Use this code when documenting ongoing treatment for a pediatric patient with a previously diagnosed greenstick fracture of the left ulnar shaft. This applies specifically when the fracture has healed with an undesirable alignment, requiring further medical intervention or monitoring. It would be appropriate for clinic visits, physical therapy, or imaging studies related to the malunion.

• Ensure documentation clearly states "left ulna" and "shaft" to support this specific site.
• Verify the encounter is for follow-up care, not the initial treatment, and that malunion is explicitly noted.
• Consider additional codes for any associated complications or procedures performed to address the malunion.