Oth fracture of first metacarpal bone, left hand, init

This code signifies a fracture of the first metacarpal bone (thumb) in the left hand, excluding Bennett's or Rolando's fractures. It indicates that the skin over the fracture site remains intact (closed fracture) and that this is the initial treatment encounter for the injury.

This code is appropriate for patients presenting with a newly diagnosed, non-displaced or displaced fracture of the left thumb's metacarpal bone, where the fracture is not specifically a Bennett's or Rolando's type. It should be used for the initial visit where the injury is evaluated and treatment is initiated.

• Ensure the fracture is definitively located in the first metacarpal of the left hand and is not a Bennett's or Rolando's fracture.
• Verify documentation confirms a closed fracture and that this is the patient's first encounter for this specific injury.
• Append additional characters for subsequent encounters (D) or sequela (S) as appropriate for later visits.