has modifier neoplasm (disease) benign neoplasm 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. DOID:0060072 DOID:0060084 DOID:0060085 EFO:0002422 Editor note: see https://github.com/NCI-Thesaurus/thesaurus-obo-edition/issues/14 ICD10:D10.D36 ICD9:210-229.99 ICD9:229.8 ICD9:229.9 ICDO:8000/0 MONDO:0005165 NCIT:C3677 SCTID:20376005 benign neoplasm benign neoplasm (disease) benign tumor benign unclassifiable tumor cell type benign neoplasm neoplasm (disease), benign neoplasm, benign organ system benign neoplasm neoplastic, non-malignant