The Body System or Organ Class TreeMap tab is shown above. This tab is presented only if AEBODSYS is available, and summarizes the body system or system organ class in a one-to-one fashion for events available on the TreeMap Results tab. It does not present the count of subjects experiencing a particular event class. For Interventions Distribution , this tab is presented only if xxCAT is available, and the name reflects the appropriate label. For example, for CM , the tab is Category for Medication TreeMap .