benign neoplasm http://purl.bioontology.org/ontology/MEDDRA/10060999 http://purl.obolibrary.org/obo/DOID_0060072 http://purl.obolibrary.org/obo/NCIT_C3677 210-229.99 A neoplasm which is characterized by the absence of morphologic features associated with malignancy (severe cytologic atypia, tumor cell necrosis, and high mitotic rate). Benign neoplasms remain confined to the original site of growth and do not metastasize to other anatomic sites. D10-D36.9 benign neoplasms non-malignant neoplasm