ICD-O2 Topography (Site) Codes
Below is a full list of ICD-O2 Topography codes.
| ICD-O2 Code | Description |
|---|---|
| C00.0 | External lip upper |
| C00.1 | External lip lower |
| C00.2 | External lip NOS |
| C00.3 | Upper lip, mucosa |
| C00.4 | Lower lip, mucosa |
| C00.5 | Mucosa lip, NOS |
| C00.6 | Commissure lip |
| C00.8 | Overlapping lesion of lip |
| C01.9 | Base of tongue, NOS |
| C02.0 | Dorsal surface tongue, NOS |
| C02.1 | Border of tongue |
| C02.2 | Ventral surface of tongue NOS |
| C02.3 | Anterior 2/3 of tongue NOS |
| C02.4 | Lingual tonsil |
| C02.8 | Overlapping lesion of tongue |
| C02.9 | Tongue NOS |
| C03.0 | Upper gum |
| C03.1 | Lower gum |
| C03.9 | Gum NOS |
| C04.0 | Anterior floor of mouth |
| C04.1 | Lateral floor of mouth |
| C04.8 | Overlapping lesion of floor of mouth |
| C04.9 | Floor of mouth NOS |
| C05.0 | Hard palate |
| C05.1 | Soft palate NOS (excludes Nasopharyngcal surface C11.3) |
| C05.2 | Uvula |
| C05.8 | Overlapping lesion of palate |
| C05.9 | Palate NOS |
| C06.0 | Cheek mucosa |
| C06.1 | Vestibule of mouth |
| C06.2 | Retromolar area |
| C06.8 | Overlapping lesion of other and unspecified parts of mouth |
| C06.9 | Mouth NOS |
| C07.9 | Parotid gland |
| C08.0 | Submaxillary gland |
| C08.1 | Sublingual gland |
| C08.8 | Overlapping lesion of major salivary glands |
| C08.9 | Major salivary gland, NOS |
| C09.0 | Tonsillar fossa |
| C09.1 | Tonsillar pillar |
| C09.8 | Overlapping lesion of tonsil |
| C09.9 | Tonsil NOS (excludes Lingual tonsil C02.4 and Pharyngeal tonsil C11.1) |
| C10.0 | Vallecula |
| C10.1 | Anterior surface of epiglottis |
| C10.2 | Lateral wall oropharynx |
| C10.3 | Posterior wall oropharynx |
| C10.4 | Branchial cleft (site of neoplosm) |
| C10.8 | Overlapping lesion of oropharynx |
| C10.9 | Oropharynx NOS |
| C11.0 | Superior wall of nasopharynx |
| C11.1 | Posterior wall nasopharynx |
| C11.2 | Lateral wall nasopharynx |
| C11.3 | Anterior wall nasopharynx |
| C11.8 | Overlapping lesion of nasopharynx |
| C11.9 | Nasopharynx NOS |
| C12.9 | Pyriform sinus |
| C13.0 | Postcricoid region |
| C13.1 | Hypopharyngeal aspect of aryepiglottic fold |
| C13.2 | Posterior wall hypopharynx |
| C13.8 | Overlapping lesion of hypopharynx |
| C13.9 | Hypopharynx, NOS |
| C14.0 | Pharynx NOS |
| C14.1 | Laryngopharynx |
| C14.2 | Waldeyer's ring |
| C14.8 | Overlapping lesion of lip, oral cavity and pharynx |
| C15.0 | Cervical esophagus |
| C15.1 | Thoracic esophagus |
| C15.2 | Abdominal esophagus |
| C15.3 | Upper third of esophagus |
| C15.4 | Middle third of esophagus |
| C15.5 | Esophagus lower third |
| C15.8 | Overlapping lesion of esophagus |
| C15.9 | Esophagus NOS |
| C16.0 | Cardia, NOS |
| C16.1 | Fundus stomach |
| C16.2 | Body stomach |
| C16.3 | Gastric antrum |
| C16.4 | Pylorus |
| C16.5 | Lesser curvature of stomach, NOS (not classifiable to C16.1 to C16.4) |
| C16.6 | Greater curvature of stomach, NOS (not classifiable to C16.0 to C16.4) |
| C16.8 | Overlapping lesion of stomach |
| C16.9 | Stomach NOS |
| C17.0 | Duodenum |
| C17.1 | Jejunum |
| C17.2 | Ileum (excludes ileocecal valve C18.0) |
| C17.3 | Meckel's diverticulum (site of neoplasm) |
| C17.8 | Overlapping lesion of small intestine |
| C17.9 | Small intestine NOS |
| C18.0 | Cecum |
| C18.1 | Appendix |
| C18.2 | Ascending colon |
| C18.3 | Hepatic flexure of colon |
| C18.4 | Transverse colon |
| C18.5 | Splenic flexure of colon |
| C18.6 | Descending colon |
| C18.7 | Sigmoid colon |
| C18.8 | Overlapping lesion of colon |
| C18.9 | Colon NOS |
| C19.9 | Rectosigmoid junction |
| C20.9 | Rectum, NOS |
| C21.0 | Anus, NOS (excludes Skin of anus and Perianal skin (C44.5) |
| C21.1 | Anal canal |
| C21.2 | Cloacogenic zone |
| C21.8 | Overlapping lesion of rectum, anus and anal canal |
| C22.0 | Liver |
| C22.1 | Intrahepatic bile duct |
| C23.9 | Gallbladder |
| C24.0 | Extrahepatic bile duct |
| C24.1 | Ampulla of Vater |
| C24.8 | Overlapping lesion of biliary tract |
| C24.9 | Biliary tract, NOS |
| C25.0 | Head of pancreas |
| C25.1 | Body pancreas |
| C25.2 | Tail pancreas |
| C25.3 | Pancreatic duct |
| C25.4 | Islets of Langerhans |
| C25.7 | Neck of pancreas |
| C25.8 | Overlapping lesion of pancreas |
| C25.9 | Pancreas NOS |
| C26.0 | Intestinal tract, NOS |
| C26.8 | Overlapping lesion of digestive system |
| C26.9 | Gastrointestinal tract, NOS |
| C30.0 | Nasal cavity (excludes Nose, NOS C76.0) |
| C30.1 | Middle ear |
| C31.0 | Maxillary sinus |
| C31.1 | Ethmoid sinus |
| C31.2 | Frontal sinus |
| C31.3 | Sphenoid sinus |
| C31.8 | Overlapping lesion of accessory sinuses |
| C31.9 | Accessory sinus, NOS |
| C32.0 | Glottis |
| C32.1 | Supraglottis |
| C32.2 | Subglottis |
| C32.3 | Laryngeal cartilage |
| C32.8 | Overlapping lesion of larynx |
| C32.9 | Larynx NOS |
| C33.9 | Trachea |
| C34.0 | Main bronchus |
| C34.1 | Upper lobe, lung |
| C34.2 | Middle lobe, lung |
| C34.3 | Lower lobe, lung |
| C34.8 | Overlapping lesion of lung |
| C34.9 | Lung NOS |
| C37.9 | Thymus |
| C38.0 | Heart |
| C38.1 | Anterior mediastinum |
| C38.2 | Posterior mediastinum |
| C38.3 | Mediastinum NOS |
| C38.4 | Pleura NOS |
| C38.8 | Overlapping lesion of heart, mediastinum and pleura |
| C39.0 | Upper respiratory tract, NOS |
| C39.8 | Overlapping lesion of respiratory system and intrathoracic organs |
| C39.9 | Respiratory tract, NOS |
| C40.0 | Upper limb long bones, joints |
| C40.1 | Upper limb short bones, joints |
| C40.3 | Lower limb short bones, joints |
| C40.8 | Overlapping lesion of bones, joints and articular cartilage of limbs |
| C40.9 | Bone limb, NOS |
| C41.0 | Skull and facial bone |
| C41.1 | Mandible |
| C41.2 | Vertebral column (excludes Sacrum and Coccyx C41.4) |
| C41.3 | Rib, sternum, clavicle |
| C41.4 | Pelvic bone |
| C41.8 | Overlapping lesion of bones, joints and articular cartilage |
| C41.9 | Bone NOS |
| C42.0 | Blood |
| C42.1 | Bone marrow |
| C42.2 | Spleen |
| C42.3 | Reticuloendothelial system, NOS |
| C42.4 | Hematopoietic system, NOS |
| C44.0 | Skin lip, NOS |
| C44.1 | Eyelid NOS |
| C44.2 | External ear |
| C44.3 | Skin face |
| C44.4 | Skin scalp, neck |
| C44.5 | Skin trunk |
| C44.6 | Skin limb, upper |
| C44.7 | Skin limb, lower |
| C47.0 | Peripheral nerve head, neck |
| C47.1 | Peripheral nerve shoulder, arm |
| C47.2 | Peripheral nerve leg |
| C47.3 | Peripheral nerve thorax (excludes Thymus, Heart and Mediastinum C37. , C38. ) |
| C47.4 | Peripheral nerve abdomen |
| C47.5 | Peripheral nerve pelvis |
| C47.6 | Peripheral nerve trunk |
| C47.8 | Overlapping lesion of peripheral nerves and autonomic nervous system |
| C47.9 | Autonomic nervous system NOS |
| C48.0 | Retroperitoneum |
| C48.1 | Peritoneum |
| C48.2 | Peritoneum NOS |
| C48.8 | Overlapping lesion of retroperitoneum and peritoneum |
| C49.0 | Connective tissue head |
| C49.1 | Connective tissue arm |
| C49.2 | Connective tissue leg |
| C49.3 | Connective tissue thorax (excludes Thymus, Heart and Mediastinum C37. , C38. ) |
| C49.4 | Connective tissue abdomen |
| C49.5 | Connective tissue pelvis |
| C49.6 | Connective tissue trunk, NOS |
| C49.8 | Overlapping lesion of connective, subcutaneous and other soft tissues |
| C49.9 | Connective tissue NOS |
| C50.0 | Nipple |
| C50.1 | Central portion of breast |
| C50.2 | Upper inner quadrant of breast |
| C50.3 | Lower inner quadrant of breast |
| C50.4 | Upper outer quadrant of breast |
| C50.5 | Lower outer quadrant of breast |
| C50.6 | Axillary tail of breast |
| C50.8 | Overlapping lesion of breast |
| C50.9 | Breast NOS (excludes Skin of breast C44.5) |
| C51.0 | Labium majus |
| C51.1 | Labium minus |
| C51.2 | Clitoris |
| C51.8 | Overlapping lesion of vulva |
| C51.9 | Vulva, NOS |
| C52.9 | Vagina, NOS |
| C53.0 | Endocervix |
| C53.1 | Exocervix |
| C53.8 | Overlapping lesion of cervix uteri |
| C53.9 | Cervix uteri |
| C54.0 | Isthmus uteri |
| C54.1 | Endometrium |
| C54.2 | Myometrium |
| C54.3 | Fundus uteri |
| C54.8 | Overlapping lesion of corpus uteri |
| C54.9 | Corpus uteri |
| C55.9 | Uterus NOS |
| C56.9 | Ovary |
| C57.0 | Fallopian tube |
| C57.1 | Broad ligament |
| C57.2 | Round ligament |
| C57.3 | Parametrium |
| C57.4 | Uterine adnexa |
| C57.7 | Wolffian body |
| C57.8 | Overlapping lesion of female genital organs |
| C57.9 | Female genital tract, NOS |
| C60.0 | Prepuce |
| C60.1 | Glans penis |
| C60.2 | Body penis |
| C60.8 | Overlapping lesion of penis |
| C60.9 | Penis NOS |
| C61.9 | Prostate gland |
| C62.0 | Undescended testis (site of neoplasm) |
| C62.1 | Descended testis |
| C62.9 | Testis NOS |
| C63.0 | Epididymis |
| C63.1 | Spermatic cord |
| C63.2 | Scrotum, NOS |
| C63.7 | Tunica vaginalis |
| C63.8 | Overlapping lesion of male genital organs |
| C63.9 | Male genital organs, NOS |
| C64.9 | Kidney NOS |
| C65.9 | Renal pelvis |
| C66.9 | Ureter |
| C67.0 | Trigone, bladder |
| C67.1 | Dome, bladder |
| C67.2 | Lateral wall bladder |
| C67.4 | Posterior wall bladder |
| C67.6 | Ureteric orifice |
| C67.7 | Urachus |
| C67.8 | Overlapping lesion of bladder |
| C67.9 | Bladder NOS |
| C68.0 | Urethra |
| C68.1 | Paraurethral gland |
| C68.8 | Overlapping lesion of urinary organs |
| C68.9 | Urinary system, NOS |
| C69.0 | Conjunctiva |
| C69.1 | Cornea, NOS |
| C69.2 | Retina |
| C69.3 | Choroid |
| C69.4 | Ciliary body |
| C69.5 | Lacrimal gland |
| C69.6 | Orbit NOS |
| C69.8 | Overlapping lesion of eye and adnexa |
| C69.9 | Eye NOS |
| C70.0 | Cerebral meninges |
| C70.1 | Spinal meninges |
| C70.9 | Meninges NOS |
| C71.0 | Cerebrum |
| C71.1 | Frontal lobe |
| C71.2 | Temporal lobe |
| C71.3 | Parietal lobe |
| C71.4 | Occipital lobe |
| C71.5 | Ventricle NOS |
| C71.6 | Cerebellum, NOS |
| C71.7 | Brain stem |
| C71.8 | Overlapping lesion of brain |
| C71.9 | Brain NOS |
| C72.0 | Spinal cord |
| C72.1 | Cauda equina |
| C72.2 | Olfactory nerve |
| C72.3 | Optic nerve |
| C72.4 | Acoustic nerve |
| C72.5 | Cranial nerve, NOS |
| C72.8 | Overlapping lesion of brain and central nervous system |
| C72.9 | Nervous system NOS |
| C73.9 | Thyroid gland |
| C74.0 | Adrenal gland cortex |
| C74.1 | Adrenal gland medulla |
| C74.9 | Adrenal gland NOS |
| C75.0 | Parathyroid gland |
| C75.1 | Pituitary gland |
| C75.2 | Craniopharyngeal duct |
| C75.3 | Pineal gland |
| C75.4 | Carotid body |
| C75.5 | Aortic body |
| C75.8 | Overlapping lesion of endocrine glands and related structures |
| C75.9 | Endocrine gland, NOS |
| C76.0 | Head, face or neck NOS |
| C76.1 | Thorax NOS |
| C76.2 | Abdomen NOS |
| C76.3 | Pelvis NOS |
| C76.4 | Upper limb NOS |
| C76.5 | Lower limb NOS |
| C76.7 | Other illdefined sites |
| C76.8 | Overlapping lesion of ill-defined sites |
| C77.0 | Lymph node face, head ,neck |
| C77.1 | Intrathoracic lymph node |
| C77.2 | Intra-abdominal lymph nodes |
| C77.3 | Lymph node axilla, arm |
| C77.4 | Lymph node inguinal region, leg |
| C77.5 | Lymph node pelvic |
| C77.8 | Lymph nodes of multiple regions |
| C77.9 | Lymph node NOS |
| C80.9 | Unknown primary site |