Disp fx of base of fourth MC bone, r hand, init for opn fx

This code signifies a break in the base of the fourth metacarpal bone in the right hand, where the bone fragments are no longer in their normal alignment. It specifically indicates an open fracture, meaning the skin and soft tissue have been compromised, exposing the bone to the outside environment. This is the initial encounter for treatment of this specific injury.

This code is appropriate for documenting the initial treatment of a patient presenting with a displaced fracture of the right fourth metacarpal base that has broken through the skin. This includes situations where the fracture is visible through a wound or has caused a laceration. It should be used for the first visit where definitive treatment or assessment of the open fracture occurs.

• Ensure documentation clearly specifies "displaced" and "open fracture" for the right fourth metacarpal base.
• Verify this is the initial encounter for the open fracture; subsequent care would use a different encounter character.
• Always code the open fracture type (e.g., Gustilo-Anderson classification) if documented, in addition to the fracture code.