May be used as an additional code to identify functional activity associated with a carcinoid tumor.
Malignant carcinoid tumors
Malignant carcinoid tumor of unspecified site
Malignant carcinoid tumors of the small intestine
Malignant carcinoid tumor of the duodenum
Malignant carcinoid tumor of the jejunum
Malignant carcinoid tumor of the ileum
Malignant carcinoid tumor of the small intestine, unspecified portion
Malignant carcinoid tumors of the appendix, large intestine, and rectum
Malignant carcinoid tumor of the appendix
Malignant carcinoid tumor of the cecum
Malignant carcinoid tumor of the ascending colon
Malignant carcinoid tumor of the transverse colon
Malignant carcinoid tumor of the descending colon
Malignant carcinoid tumor of the sigmoid colon
Malignant carcinoid tumor of the rectum
Malignant carcinoid tumor of the large intestine, unspecified portion
Malignant carcinoid tumors of other sites
Malignant carcinoid tumor of the bronchus and lung
Malignant carcinoid tumor of the thymus
Malignant carcinoid tumor of the stomach
Malignant carcinoid tumor of the kidney
Malignant carcinoid tumor of the foregut, unspecified
Malignant carcinoid tumor of the midgut, unspecified
Malignant carcinoid tumor of the hindgut, unspecified
Malignant carcinoid tumors of other sites
Malignant poorly differentiated neuroendocrine tumors
Other malignant neuroendocrine tumors