neoplasm ICD10CM:C00-D49 tumor ICD10CM:C7B-C7B neoplasm ICD9:239.8 SCTID:55342001 neoplastic disease ICD9:239.9 neoplastic growth tumour disease disease of cellular proliferation other neoplasm tumour UMLS:C0027651 neoplasm (disease) A benign or malignant tissue growth resulting from uncontrolled cell proliferation. Benign neoplastic cells resemble normal cells without exhibiting significant cytologic atypia, while malignant cells exhibit overt signs such as dysplastic features, atypical mitotic figures, necrosis, nuclear pleomorphism, and anaplasia. Representative examples of benign neoplasms include papillomas, cystadenomas, and lipomas; malignant neoplasms include carcinomas, sarcomas, lymphomas, and leukemias. EFO:0000616 ICD9:140-239 HP:0002664 neoplasm (disease) neoplasia NCIT:C3262 DOID:14566 MONDO:0005070 MESH:D009369 ICD10CM:C7A-C7A ONCOTREE:OTHER cell process disease MEDGEN:10294 tumor disease disease by etiologic mechanism