Oth nondisp fx of base of 1st MC bone, l hand, 7thB

This code signifies a break in the base of the first metacarpal bone (thumb) in the left hand, where the bone fragments are still in their normal anatomical position. It specifically indicates that the fracture is an open type, meaning the skin and soft tissue have been compromised, exposing the bone. This is the initial encounter for this injury.

Apply this code for a patient presenting with a newly diagnosed, non-displaced fracture at the base of their left thumb's first metacarpal, where there is an associated open wound. This would be used for the initial treatment and management of such an injury, prior to any subsequent care.

• Ensure documentation clearly specifies "nondisplaced" and "open fracture" for the left first metacarpal base.
• Verify this is the patient's initial encounter for this specific injury; subsequent care would use a different encounter character.
• Confirm the laterality is explicitly documented as "left hand."