Any inflammatory bowel disease in which the cause of the disease is a mutation in the NOD2 gene. The disease is inflammatory bowel disease 1 (MONDO_0009960, a Monarch Disease Ontology term). Also known as: Crohn disease-associated growth failure, IBD1, NOD2 inflammatory bowel disease, inflammatory bowel disease (Crohn disease) 1, inflammatory bowel disease 1, Crohn disease, inflammatory bowel disease caused by mutation in NOD2, inflammatory bowel disease type 1.