Closed dislocation of jaw

This code signifies a complete displacement of the temporomandibular joint (TMJ) where the condyle of the mandible is no longer in articulation with the temporal bone, and the overlying skin remains intact. It represents an acute or chronic dislocation of the jaw that has not broken through the skin.

Use this code for patients presenting with a dislocated jaw that is not an open injury. Documentation should clearly state "closed dislocation" or describe the absence of an open wound in conjunction with a TMJ dislocation. This code is appropriate for both anterior and posterior dislocations, as long as the skin is unbroken.

• Differentiate from open dislocations (e.g., 830.1) where there is an associated wound communicating with the joint.
• Do not use for subluxations or sprains of the jaw; those have distinct codes.
• Ensure documentation specifies laterality if known (e.g., unilateral vs. bilateral), though this code does not differentiate.