Disp fx of neck of first metacarpal bone, left hand, init

This code signifies a break in the neck of the first metacarpal bone (thumb) in the left hand, where the bone fragments are no longer in their normal alignment. This injury is typically acute and requires initial medical attention for a closed fracture, meaning the skin remains intact over the fracture site.

Apply this code for a patient presenting with a newly diagnosed, displaced fracture of the left thumb's metacarpal neck. This would be used during the initial treatment phase, such as emergency department visits or the first orthopedic consultation following the injury. It is appropriate when there is radiographic evidence confirming displacement and the skin is not broken.

• Ensure documentation specifies "displaced" and "left hand" for accurate code selection.
• Confirm the encounter is for the initial treatment of the closed fracture.
• Distinguish from non-displaced fractures or open fractures, which have different code assignments.