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

This code describes a specific type of incomplete fracture, a greenstick fracture, affecting the shaft of the left humerus. It indicates that the patient is in a subsequent phase of care where the fracture has healed but with an unsatisfactory alignment (malunion).

This code is appropriate for follow-up encounters where a previously treated greenstick fracture of the left humeral shaft is now presenting with evidence of malunion. This could include scenarios where the patient is being evaluated for corrective surgery or ongoing management of the malaligned bone.

• Always confirm the laterality (left arm) and the specific fracture type (greenstick) and location (shaft of humerus).
• The 7th character "P" signifies a subsequent encounter for a fracture with malunion; ensure this accurately reflects the patient's current stage of treatment.
• Do not use this code for initial treatment of the fracture or for nonunion; separate codes exist for those scenarios.