| C17 | Malignant neoplasm of small intestine |
| C17.0 | Malignant neoplasm of duodenum |
| C17.1 | Malignant neoplasm of jejunum |
| C17.9 | Malignant neoplasm of small intestine, unspecified |
| C18 | Malignant neoplasm of colon |
| C18.0 | Malignant neoplasm of cecum |
| C18.1 | Malignant neoplasm of appendix |
| C18.2 | Malignant neoplasm of ascending colon |
| C18.3 | Malignant neoplasm of hepatic flexure |
| C18.4 | Malignant neoplasm of transverse colon |
| C18.5 | Malignant neoplasm of splenic flexure |
| C18.6 | Malignant neoplasm of descending colon |
| C18.7 | Malignant neoplasm of sigmoid colon |
| C18.8 | Malignant neoplasm of overlapping sites of colon |
| C18.9 | Malignant neoplasm of colon, unspecified |
| C19 | Malignant neoplasm of rectosigmoid junction |
| C20 | Malignant neoplasm of rectum |
| C21 | Malignant neoplasm of anus and anal canal |
| C39 | Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs |
| C39.0 | Malignant neoplasm of upper respiratory tract, part unspecified |
| C45 | Mesothelioma |
| C45.0 | Mesothelioma of pleura |
| C45.1 | Mesothelioma of peritoneum |
| C45.2 | Mesothelioma of pericardium |
| C45.7 | Mesothelioma of other sites |
| C45.9 | Mesothelioma, unspecified |
| C53 | Malignant neoplasm of cervix uteri |
| C53.9 | Malignant neoplasm of cervix uteri, unspecified |
| C54 | Malignant neoplasm of corpus uteri |
| C54.1 | Malignant neoplasm of endometrium |
| C54.9 | Malignant neoplasm of corpus uteri, unspecified |
| C55 | Malignant neoplasm of uterus, part unspecified |
| C56 | Malignant neoplasm of ovary |
| C56.1 | Malignant neoplasm of right ovary |
| C56.2 | Malignant neoplasm of left ovary |
| C56.9 | Malignant neoplasm of unspecified ovary |
| C57 | Malignant neoplasm of other and unspecified female genital organs |
| C57.00 | Malignant neoplasm of unspecified fallopian tube |
| C57.01 | Malignant neoplasm of right fallopian tube |
| C57.02 | Malignant neoplasm of left fallopian tube |
| C57.4 | Malignant neoplasm of uterine adnexa, unspecified |
| C66 | Malignant neoplasm of ureter |
| C66.1 | Malignant neoplasm of right ureter |
| C66.2 | Malignant neoplasm of left ureter |
| C66.9 | Malignant neoplasm of unspecified ureter |
| C68 | Malignant neoplasm of other and unspecified urinary organs |
| C68.9 | Malignant neoplasm of urinary organ, unspecified |
| C79.6 | Secondary malignant neoplasm of ovary |
| C79.60 | Secondary malignant neoplasm of unspecified ovary |
| C79.61 | Secondary malignant neoplasm of right ovary |
| C79.62 | Secondary malignant neoplasm of left ovary |
| D12 | Benign neoplasm of colon, rectum, anus and anal canal |
| D27 | Benign neoplasm of ovary |
| R97 | Abnormal tumor markers |
| R97.0 | Elevated carcinoembryonic antigen [CEA] |
| Z08 | Encounter for follow-up examination after completed treatment for malignant neoplasm |
| Z09 | Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm |
| Z15.09 | Genetic susceptibility to other malignant neoplasm |
| Z51.0 | Encounter for antineoplastic radiation therapy |
| Z51.1 | Encounter for antineoplastic chemotherapy and immunotherapy |
| Z51.11 | Encounter for antineoplastic chemotherapy |
| Z51.12 | Encounter for antineoplastic immunotherapy |
| Z79 | Long term (current) drug therapy |
| Z79.89 | Other long term (current) drug therapy |
| Z79.899 | Other long term (current) drug therapy |
| Z80 | Family history of primary malignant neoplasm |
| Z80.0 | Family history of malignant neoplasm of digestive organs |
| Z80.2 | Family history of malignant neoplasm of other respiratory and intrathoracic organs |
| Z83.71 | Family history of colonic polyps |
| Z85 | Personal history of malignant neoplasm |
| Z85.0 | Personal history of malignant neoplasm of digestive organs |
| Z85.00 | Personal history of malignant neoplasm of unspecified digestive organ |
| Z85.038 | Personal history of other malignant neoplasm of large intestine |
| Z85.048 | Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus |
| Z85.05 | Personal history of malignant neoplasm of liver |
| Z85.41 | Personal history of malignant neoplasm of cervix uteri |
| Z85.42 | Personal history of malignant neoplasm of other parts of uterus |
| Z85.43 | Personal history of malignant neoplasm of ovary |
| Z85.44 | Personal history of malignant neoplasm of other female genital organs |
| Z85.54 | Personal history of malignant neoplasm of ureter |
| Z85.9 | Personal history of malignant neoplasm, unspecified |
| Z86.004 | Personal history of in-situ neoplasm of other and unspecified digestive organs |
| Z86.010 | Personal history of colonic polyps |
| Z87.19 | Personal history of other diseases of the digestive system |