Posterior dislocation of left acromioclavicular joint, init

This code signifies a posterior displacement of the acromion relative to the clavicle in the left shoulder. This type of dislocation is less common than anterior dislocations and often indicates significant trauma to the shoulder girdle. Patients typically present with severe pain, swelling, and deformity over the acromioclavicular joint.

Apply this code when documenting the initial treatment or evaluation of a patient who has sustained a posterior dislocation of their left acromioclavicular joint. This includes emergency department visits, initial orthopedic consultations, or the first encounter for definitive treatment. It is appropriate for acute injuries resulting in this specific joint displacement.

• Ensure documentation specifies "posterior" dislocation and the "left" side.
• Confirm this is the initial encounter for the injury; subsequent encounters will use different seventh characters.
• Look for associated injuries, such as fractures, which would require additional coding.