Greenstick fx shaft of humer, l arm, subs for fx w nonunion

This code signifies a specific type of incomplete fracture (greenstick) located in the shaft of the left humerus. It indicates that the patient is in a subsequent phase of care for this fracture, and a complication of nonunion has been identified.

Apply this code when documenting follow-up care for a pediatric patient with a left humeral shaft greenstick fracture that has failed to heal properly. This is appropriate for encounters where the nonunion is being managed, such as for casting changes, follow-up imaging, or surgical planning for the nonunion.

• Ensure documentation clearly specifies "greenstick" and "shaft" for the humerus.
• Verify laterality as "left" and confirm the encounter is for subsequent care.
• Confirm the presence of nonunion; do not use for delayed union or malunion.