Greenstick fx shaft of rad, left arm, subs for fx w malunion

This code describes a greenstick fracture affecting the shaft of the radius bone in the left arm that has not healed correctly, resulting in a malunion. A greenstick fracture is an incomplete fracture where the bone bends and cracks but does not break all the way through, common in children. The "subsequent encounter" indicates that the patient is receiving follow-up care for this previously treated fracture.

This code is appropriate when a patient presents for ongoing management of a left radial shaft greenstick fracture that has healed in an unsatisfactory position or alignment. This includes visits for assessment, physical therapy, or surgical planning related to the malunion. It should be used after the initial treatment of the fracture has concluded.

• Ensure documentation clearly specifies "left arm" and "shaft of radius" for anatomical accuracy.
• Verify that the encounter is for follow-up care of a malunion, not routine healing or nonunion.
• Confirm the fracture type is explicitly documented as a "greenstick fracture."