Open dislocation of ankle

This code represents an open dislocation of the ankle joint, meaning the articular surfaces of the tibia, fibula, and talus are no longer in proper alignment, and there is an associated open wound exposing the joint. This injury involves a disruption of both the joint capsule and the overlying skin and soft tissues.

Use this code when documentation clearly states an "open" ankle dislocation. This typically occurs due to high-energy trauma, such as motor vehicle accidents or falls from height, where the force is sufficient to both dislocate the joint and create an external wound communicating with the joint space. Documentation should specify the open nature of the injury.

• Distinguish carefully between open and closed dislocations; the presence of an open wound is critical for this code.
• Always code any associated fractures separately, as an open dislocation often accompanies fractures of the malleoli or talus.
• Ensure the documentation specifies the ankle joint (talocrural joint) and not other foot joints.