Sternal manubrial dissociation, init for clos fx

This code signifies a complete separation of the manubrium from the body of the sternum, often involving disruption of the intervening fibrocartilaginous joint. This is a severe injury to the anterior chest wall, typically resulting from high-impact trauma.

Apply this code for patients presenting with a newly diagnosed sternal manubrial dissociation that is a closed fracture, meaning the skin remains intact over the injury. This is appropriate for the initial treatment or evaluation of the injury.

• Ensure documentation clearly specifies "manubrial dissociation" and not just a sternal fracture.
• Verify the fracture is closed; if open, a different code is required.
• Confirm this is the patient's initial encounter for this specific injury. Subsequent encounters will use a different seventh character.