Cluster 611: bowel affecting small stomach significantly malabsorption resection disease gastrointestinal obstruction 
Cluster 1217: alimentation affecting requirement absorption gastrointestinal disease inability oral procedures intravenous 
Cluster 2016: affecting significantly gastrointestinal function malabsorption swallow syndrome unable disease capsules 
Cluster 2112: integrity tract malabsorption gastrointestinal lack physical syndrome upper oral unable