Disp fx of shaft of fourth MC bone, l hand, init for opn fx

This code signifies a break in the shaft of the fourth metacarpal bone in the left hand, where the bone fragments are no longer in their normal alignment. This specific injury is an open fracture, meaning there is a wound that communicates with the fracture site, and the patient is presenting for initial treatment.

Apply this code for a patient presenting to the emergency department or clinic for the first time following an injury that resulted in an open, displaced fracture of the shaft of their left fourth metacarpal. This is appropriate when the initial surgical or non-surgical management of the fracture is being planned or initiated.

• Ensure documentation clearly specifies "displaced" and "open fracture" for the shaft of the fourth metacarpal.
• Verify the laterality is explicitly stated as "left hand."
• Confirm this is the initial encounter for the fracture treatment; subsequent encounters would use a different seventh character.