Open dislocation of jaw

This code signifies an open dislocation of the temporomandibular joint (TMJ), meaning the joint surfaces are displaced from their normal alignment and there is an associated open wound exposing the joint. This injury typically involves a break in the skin and underlying soft tissues, communicating with the dislocated joint.

Apply this code when documentation clearly indicates a jaw dislocation with an open wound, such as a laceration or compound fracture, that directly communicates with the dislocated joint. This scenario often arises from significant trauma where the force is sufficient to both dislocate the jaw and create an open injury.

• Ensure documentation explicitly states "open dislocation" or describes an open wound communicating with the dislocated joint.
• Distinguish carefully from closed dislocations (830.0) where there is no open wound.
• Code any associated open wounds or fractures separately if they are not integral to the open dislocation itself.