2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Neoplasms Of Unspecified Nature 239-239 > 2006 ICD-9-CM Diagnosis 239 Neoplasms of unspecified nature View the most recent version of ICD-9-CM 239 A new growth of benign or malignant tissue. (NEE-o-PLAY-zha) Abnormal and uncontrolled cell growth. New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. An abnormal tissue growth resulted from uncontrolled cell proliferation. Benign neoplastic cells resemble normal cells without exhibiting significant cytologic atypia, while malignant ones 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. -- 2004 (TOO-mer) An abnormal mass of tissue that results from excessive cell division. Tumors perform no useful body function. They may be benign (not cancerous) or malignant (cancerous). 239 is a non-specific code that cannot be used to specify a diagnosis Note : Category 239 classifies by site neoplasms of unspecified morphology and behavior. The term "mass," unless otherwise stated, is not to be regarded as a neoplastic growth. 239 Includes "growth" NOS neoplasm NOS new growth NOS tumor NOS