Displ seg fx shaft of humerus, left arm, init for opn fx

This code signifies a fracture occurring in the middle section (shaft) of the left upper arm bone (humerus), where the bone has broken into at least three pieces (segmental) and the broken ends are not properly aligned (displaced). It specifically indicates an open fracture, meaning the skin and soft tissue were compromised, exposing the bone to the outside environment.

Use this code for initial treatment of a patient presenting with a new, acute segmental fracture of the left humeral shaft that is openly exposed. This applies to situations such as a traumatic injury where the bone has pierced the skin or there is a deep wound communicating with the fracture site.

• Ensure documentation clearly specifies "segmental" and "displaced" for the humeral shaft fracture.
• Verify the laterality is explicitly stated as "left arm."
• Confirm the encounter is the "initial encounter" for treatment of this specific open fracture.