Monarch Disease Ontology entry MONDO_0009173 (congenital enteropathy due to enteropeptidase deficiency) is a rare, genetic, gastroenterological disease characterized by early-onset failure to thrive, edema, hypoproteinemia, diarrhea and fat malabsorption (or steatorrhea) in the presence of very low or absent trypsin activity in duodenal fluid. Celiac disease, or other pancreatic or mucosal disorders, may be associated. Also known as: congenital enterokinase deficiency.