C7A.0 - Malignant carcinoid tumors
C7A.01 - Malignant carcinoid tumors of the small intestine
C7A.010 - Malignant carcinoid tumor of the duodenum
C7A.011 - Malignant carcinoid tumor of the jejunum
C7A.012 - Malignant carcinoid tumor of the ileum
C7A.019 - Malignant carcinoid tumor of the small intestine, unspecified portion