Nondisp seg fx shaft of humer, l arm, subs for fx w malunion

This code describes a fracture in the middle section of the left upper arm bone (humerus) that has broken into at least three pieces, but these pieces are still in their normal anatomical alignment. The fracture is currently healing, but the bone fragments have joined together in an imperfect or deformed position (malunion).

This code is used when a patient presents for follow-up care of a previously diagnosed segmental shaft fracture of the left humerus, and imaging or clinical assessment confirms that the fracture is healing with malunion. This would typically be documented during an office visit, hospital outpatient visit, or other subsequent encounter for fracture management.

• Ensure documentation clearly specifies "left" humerus and "segmental" fracture of the shaft.
• Verify that the encounter is for follow-up care of the fracture and not the initial treatment.
• Confirm that the physician's assessment explicitly states or implies malunion as the current healing status.