Nondisp fx of shaft of oth metacarpal bone, init for opn fx

This code signifies a break in the main body (shaft) of any metacarpal bone, excluding the thumb, where the bone fragments remain in their normal anatomical alignment. The fracture has broken through the skin, exposing the bone to the outside environment. This code is used for the initial treatment of such an injury.

Apply this code when documenting the first encounter for an open fracture of the shaft of the second, third, fourth, or fifth metacarpal. This would include situations like a crush injury or direct trauma where the skin is compromised and the bone is visible or communicates with the external environment.

• Ensure documentation clearly specifies "open fracture" and "initial encounter."
• Confirm the fracture is of the metacarpal shaft and not the base or head.
• Verify it's not the thumb metacarpal (first metacarpal) as that has a separate code.