Oth nondisp fx of base of first MC bone, left hand, init

This code signifies a break in the base of the first metacarpal bone (thumb) on the left hand that has not shifted out of alignment. It specifically refers to a fracture that is not a Bennett's or Rolando's fracture, and the skin over the fracture site remains intact.

Apply this code for a patient presenting with a newly diagnosed, non-displaced fracture at the base of the left first metacarpal, excluding those classified as Bennett's or Rolando's. This is appropriate for the initial treatment of a closed fracture, such as from a fall or direct impact.

• Ensure the documentation specifies "nondisplaced" and "base of first metacarpal" to differentiate from other metacarpal fractures.
• Verify the laterality is "left hand" and the encounter is "initial" for a closed fracture.
• Confirm the fracture is not a Bennett's or Rolando's fracture, as those have specific codes.