| C70 | Malignant neoplasm of meninges |
| C70.0 | Malignant neoplasm of cerebral meninges |
| C70.1 | Malignant neoplasm of spinal meninges |
| C70.9 | Malignant neoplasm of meninges, unspecified |
| C71 | Malignant neoplasm of brain |
| C71.0 | Malignant neoplasm of cerebrum, except lobes and ventricles |
| C71.1 | Malignant neoplasm of frontal lobe |
| C71.2 | Malignant neoplasm of temporal lobe |
| C71.3 | Malignant neoplasm of parietal lobe |
| C71.4 | Malignant neoplasm of occipital lobe |
| C71.5 | Malignant neoplasm of cerebral ventricle |
| C71.6 | Malignant neoplasm of cerebellum |
| C71.7 | Malignant neoplasm of brain stem |
| C71.8 | Malignant neoplasm of overlapping sites of brain |
| C71.9 | Malignant neoplasm of brain, unspecified |
| C72 | Malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system |
| C72.0 | Malignant neoplasm of spinal cord |
| C72.1 | Malignant neoplasm of cauda equina |
| C72.2 | Malignant neoplasm of olfactory nerve |
| C72.20 | Malignant neoplasm of unspecified olfactory nerve |
| C72.21 | Malignant neoplasm of right olfactory nerve |
| C72.22 | Malignant neoplasm of left olfactory nerve |
| C72.3 | Malignant neoplasm of optic nerve |
| C72.30 | Malignant neoplasm of unspecified optic nerve |
| C72.31 | Malignant neoplasm of right optic nerve |
| C72.32 | Malignant neoplasm of left optic nerve |
| C72.4 | Malignant neoplasm of acoustic nerve |
| C72.40 | Malignant neoplasm of unspecified acoustic nerve |
| C72.41 | Malignant neoplasm of right acoustic nerve |
| C72.42 | Malignant neoplasm of left acoustic nerve |
| C72.5 | Malignant neoplasm of other and unspecified cranial nerves |
| C72.50 | Malignant neoplasm of unspecified cranial nerve |
| C72.59 | Malignant neoplasm of other cranial nerves |
| C72.9 | Malignant neoplasm of central nervous system, unspecified |
| C73 | Malignant neoplasm of thyroid gland |
| C74 | Malignant neoplasm of adrenal gland |
| C74.0 | Malignant neoplasm of cortex of adrenal gland |
| C74.00 | Malignant neoplasm of cortex of unspecified adrenal gland |
| C74.01 | Malignant neoplasm of cortex of right adrenal gland |
| C74.02 | Malignant neoplasm of cortex of left adrenal gland |
| C74.1 | Malignant neoplasm of medulla of adrenal gland |
| C74.10 | Malignant neoplasm of medulla of unspecified adrenal gland |
| C74.11 | Malignant neoplasm of medulla of right adrenal gland |
| C74.12 | Malignant neoplasm of medulla of left adrenal gland |
| C74.9 | Malignant neoplasm of unspecified part of adrenal gland |
| C74.90 | Malignant neoplasm of unspecified part of unspecified adrenal gland |
| C74.91 | Malignant neoplasm of unspecified part of right adrenal gland |
| C74.92 | Malignant neoplasm of unspecified part of left adrenal gland |
| C75 | Malignant neoplasm of other endocrine glands and related structures |
| C75.0 | Malignant neoplasm of parathyroid gland |
| C75.1 | Malignant neoplasm of pituitary gland |
| C75.2 | Malignant neoplasm of craniopharyngeal duct |
| C75.3 | Malignant neoplasm of pineal gland |
| C75.4 | Malignant neoplasm of carotid body |
| C75.5 | Malignant neoplasm of aortic body and other paraganglia |
| C75.8 | Malignant neoplasm with pluriglandular involvement, unspecified |
| C75.9 | Malignant neoplasm of endocrine gland, unspecified |
| C76 | Malignant neoplasm of other and ill-defined sites |
| C76.0 | Malignant neoplasm of head, face and neck |
| C76.1 | Malignant neoplasm of thorax |
| C76.2 | Malignant neoplasm of abdomen |
| C76.3 | Malignant neoplasm of pelvis |
| C76.4 | Malignant neoplasm of upper limb |
| C76.40 | Malignant neoplasm of unspecified upper limb |
| C76.41 | Malignant neoplasm of right upper limb |
| C76.42 | Malignant neoplasm of left upper limb |
| C76.5 | Malignant neoplasm of lower limb |
| C76.50 | Malignant neoplasm of unspecified lower limb |
| C76.51 | Malignant neoplasm of right lower limb |
| C76.52 | Malignant neoplasm of left lower limb |
| C76.8 | Malignant neoplasm of other specified ill-defined sites |
| C77 | Secondary and unspecified malignant neoplasm of lymph nodes |
| C77.0 | Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck |
| C77.1 | Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes |
| C77.2 | Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes |
| C77.3 | Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes |
| C77.4 | Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes |
| C77.5 | Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes |
| C77.8 | Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions |
| C77.9 | Secondary and unspecified malignant neoplasm of lymph node, unspecified |
| C78 | Secondary malignant neoplasm of respiratory and digestive organs |
| C78.0 | Secondary malignant neoplasm of lung |
| C78.00 | Secondary malignant neoplasm of unspecified lung |
| C78.01 | Secondary malignant neoplasm of right lung |
| C78.02 | Secondary malignant neoplasm of left lung |
| C78.1 | Secondary malignant neoplasm of mediastinum |
| C78.2 | Secondary malignant neoplasm of pleura |
| C78.3 | Secondary malignant neoplasm of other and unspecified respiratory organs |
| C78.30 | Secondary malignant neoplasm of unspecified respiratory organ |
| C78.39 | Secondary malignant neoplasm of other respiratory organs |
| C78.4 | Secondary malignant neoplasm of small intestine |
| C78.5 | Secondary malignant neoplasm of large intestine and rectum |
| C78.6 | Secondary malignant neoplasm of retroperitoneum and peritoneum |
| C78.7 | Secondary malignant neoplasm of liver and intrahepatic bile duct |
| C78.8 | Secondary malignant neoplasm of other and unspecified digestive organs |
| C78.80 | Secondary malignant neoplasm of unspecified digestive organ |
| C78.89 | Secondary malignant neoplasm of other digestive organs |
| C79 | Secondary malignant neoplasm of other and unspecified sites |
| C79.0 | Secondary malignant neoplasm of kidney and renal pelvis |
| C79.00 | Secondary malignant neoplasm of unspecified kidney and renal pelvis |
| C79.01 | Secondary malignant neoplasm of right kidney and renal pelvis |
| C79.02 | Secondary malignant neoplasm of left kidney and renal pelvis |
| C79.1 | Secondary malignant neoplasm of bladder and other and unspecified urinary organs |
| C79.10 | Secondary malignant neoplasm of unspecified urinary organs |
| C79.11 | Secondary malignant neoplasm of bladder |
| C79.19 | Secondary malignant neoplasm of other urinary organs |
| C79.2 | Secondary malignant neoplasm of skin |
| C79.3 | Secondary malignant neoplasm of brain and cerebral meninges |
| C79.31 | Secondary malignant neoplasm of brain |
| C79.32 | Secondary malignant neoplasm of cerebral meninges |
| C79.4 | Secondary malignant neoplasm of other and unspecified parts of nervous system |
| C79.40 | Secondary malignant neoplasm of unspecified part of nervous system |
| C79.49 | Secondary malignant neoplasm of other parts of nervous system |
| C79.5 | Secondary malignant neoplasm of bone and bone marrow |
| C79.51 | Secondary malignant neoplasm of bone |
| C79.52 | Secondary malignant neoplasm of bone marrow |
| 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 |
| C79.63 | Secondary malignant neoplasm of bilateral ovaries |
| C79.7 | Secondary malignant neoplasm of adrenal gland |
| C79.70 | Secondary malignant neoplasm of unspecified adrenal gland |
| C79.71 | Secondary malignant neoplasm of right adrenal gland |
| C79.72 | Secondary malignant neoplasm of left adrenal gland |
| C79.8 | Secondary malignant neoplasm of other specified sites |
| C79.81 | Secondary malignant neoplasm of breast |
| C79.82 | Secondary malignant neoplasm of genital organs |
| C79.89 | Secondary malignant neoplasm of other specified sites |
| C79.9 | Secondary malignant neoplasm of unspecified site |