Nondisp fx of neck of first MC bone, l hand, init for opn fx

This code signifies a break in the neck of the first metacarpal bone (thumb) in the left hand, where the bone fragments have not shifted out of alignment. It specifically indicates an open fracture, meaning there is a wound communicating with the fracture site, and it's the first time the patient is receiving active treatment for this injury.

Apply this code for a patient presenting with an open fracture of the left thumb's metacarpal neck, confirmed by imaging, where the fracture fragments remain in their anatomical position. This is appropriate for the initial surgical repair, casting, or other definitive treatment for the open fracture.

• Ensure documentation clearly specifies "nondisplaced" and "open fracture" for the left first metacarpal neck.
• Verify this is the initial encounter for active treatment of the open fracture, not a subsequent visit for routine healing or follow-up.
• Confirm the laterality is left hand; do not use for right hand injuries.