D3A.0 - Benign carcinoid tumors
D3A.02 - Benign carcinoid tumors of the appendix, large intestine, and rectum
D3A.020 - Benign carcinoid tumor of the appendix
D3A.021 - Benign carcinoid tumor of the cecum
D3A.022 - Benign carcinoid tumor of the ascending colon
D3A.023 - Benign carcinoid tumor of the transverse colon
D3A.024 - Benign carcinoid tumor of the descending colon
D3A.025 - Benign carcinoid tumor of the sigmoid colon
D3A.026 - Benign carcinoid tumor of the rectum
D3A.029 - Benign carcinoid tumor of the large intestine, unspecified portion