Primary Site
This input is used in derivation
Notes
See the [SEER Program Coding Manual](https://seer.cancer.gov/tools/codingmanuals/index.html) for coding instructions.NAACCR Item
NAACCR #400| Primary Site | Description |
|---|---|
| C000 | External upper lip |
| C001 | External lower lip |
| C002 | External lip, NOS |
| C003 | Inner aspect, upper lip |
| C004 | Inner aspect, lower lip |
| C005 | Inner aspect of lip, NOS |
| C006 | Commissure of lip |
| C008 | Overlapping lesion of lip |
| C009 | Lip, NOS |
| C019 | Base of tongue |
| C020 | Dorsal surface of tongue |
| C021 | Border of tongue |
| C022 | Ventral surface of tongue |
| C023 | Anterior two-thirds of tongue, NOS |
| C024 | Lingual tonsil |
| C028 | Overlapping lesion of tongue |
| C029 | Tongue, NOS |
| C030 | Upper gum |
| C031 | Lower gum |
| C039 | Gum, NOS |
| C040 | Anterior floor of mouth |
| C041 | Lateral floor of mouth |
| C048 | Overlapping lesion of floor of mouth |
| C049 | Floor of mouth, NOS |
| C050 | Hard palate |
| C051 | Soft palate |
| C052 | Uvula |
| C058 | Overlapping lesion of palate |
| C059 | Palate, NOS |
| C060 | Cheek mucosa |
| C061 | Vestibule of mouth |
| C062 | Retromolar area |
| C068 | Overlapping lesion of other & unspecified parts of mouth |
| C069 | Mouth, NOS |
| C079 | Parotid gland |
| C080 | Submandibular gland |
| C081 | Sublingual gland |
| C088 | Overlapping lesion of major salivary glands |
| C089 | Major salivary gland, NOS |
| C090 | Tonsillar fossa |
| C091 | Tonsillar pillar |
| C098 | Overlapping lesion of tonsil |
| C099 | Tonsil, NOS |
| C100 | Vallecula |
| C101 | Anterior surface of epiglottis |
| C102 | Lateral wall of oropharynx |
| C103 | Posterior wall of oropharynx |
| C104 | Branchial cleft |
| C108 | Overlapping lesion of oropharynx |
| C109 | Oropharynx, NOS |
| C110 | Superior wall of nasopharynx |
| C111 | Posterior wall of nasopharynx |
| C112 | Lateral wall of nasopharynx |
| C113 | Anterior wall of nasopharynx |
| C118 | Overlapping lesion of nasopharynx |
| C119 | Nasopharynx, NOS |
| C129 | Pyriform sinus |
| C130 | Postcricoid region |
| C131 | Aryepiglottic fold, hypopharyngeal aspect |
| C132 | Posterior wall of hypopharynx |
| C138 | Overlapping lesion of hypopharynx |
| C139 | Hypopharynx, NOS |
| C140 | Pharynx, NOS |
| C142 | Waldeyer's ring |
| C148 | Overlapping lesion of lip, oral cavity & pharynx |
| C150 | Cervical part of esophagus |
| C151 | Thoracic part of esophagus |
| C152 | Abdominal part of esophagus |
| C153 | Upper third of esophagus |
| C154 | Middle third of esophagus |
| C155 | Lower third of esophagus |
| C158 | Overlapping lesion of esophagus |
| C159 | Esophagus, NOS |
| C160 | Cardia |
| C161 | Fundus of stomach |
| C162 | Body of stomach |
| C163 | Gastric antrum |
| C164 | Pylorus |
| C165 | Lesser curvature of stomach, NOS |
| C166 | Greater curvature of stomach, NOS |
| C168 | Overlapping lesion of stomach |
| C169 | Stomach, NOS |
| C170 | Duodenum |
| C171 | Jejunum |
| C172 | Ileum |
| C173 | Meckel diverticulum |
| C178 | Overlapping lesion of small intestine |
| C179 | Small intestine, NOS |
| C180 | Cecum |
| C181 | Appendix |
| C182 | Ascending colon |
| C183 | Hepatic flexure of colon |
| C184 | Transverse colon |
| C185 | Splenic flexure of colon |
| C186 | Descending colon |
| C187 | Sigmoid colon |
| C188 | Overlapping lesion of colon |
| C189 | Colon, NOS |
| C199 | Rectosigmoid junction |
| C209 | Rectum |
| C210 | Anus, NOS |
| C211 | Anal canal |
| C212 | Cloacogenic zone |
| C218 | Overlapping lesion of rectum, anus & anal canal |
| C220 | Liver |
| C221 | Intrahepatic bile duct |
| C239 | Gallbladder |
| C240 | Extrahepatic bile duct |
| C241 | Ampulla of vater |
| C248 | Overlapping lesion of biliary tract |
| C249 | Biliary tract, NOS |
| C250 | Head of pancreas |
| C251 | Body of pancreas |
| C252 | Tail of pancreas |
| C253 | Pancreatic duct |
| C254 | Endocrine pancreas |
| C257 | Oth parts of pancreas |
| C258 | Overlapping lesion of pancreas |
| C259 | Pancreas, NOS |
| C260 | Intestinal tract, NOS |
| C268 | Overlapping lesion of digestive system |
| C269 | Gastrointestinal tract, NOS |
| C300 | Nasal cavity |
| C301 | Middle ear |
| C310 | Maxillary sinus |
| C311 | Ethmoidal sinus |
| C312 | Frontal sinus |
| C313 | Sphenoidal sinus |
| C318 | Overlapping lesion of accessory sinuses |
| C319 | Accessory sinus, NOS |
| C320 | Glottis |
| C321 | Supraglottis |
| C322 | Subglottis |
| C323 | Laryngeal cartilage |
| C328 | Overlapping lesion of larynx |
| C329 | Larynx, NOS |
| C339 | Trachea |
| C340 | Main bronchus |
| C341 | Upper lobe, bronchus or lung |
| C342 | Middle lobe, bronchus or lung |
| C343 | Lower lobe, bronchus or lung |
| C348 | Overlapping lesion of bronchus & lung |
| C349 | Bronchus or lung, NOS |
| C379 | Thymus |
| C380 | Heart |
| C381 | Anterior mediastinum |
| C382 | Posterior mediastinum |
| C383 | Mediastinum, NOS |
| C384 | Pleura |
| C388 | Overlapping lesion of heart, mediastinum & pleura |
| C390 | Upper respiratory tract, NOS |
| C398 | Overlapping lesion of respiratory & intrathoracic organs |
| C399 | Ill-defined sites within respiratory system |
| C400 | Long bones of upper limb, scapula and associative joints |
| C401 | Short bones of upper limb and associative joints |
| C402 | Long bones of lower limb and associative joints |
| C403 | Short bones of lower limb and associative joints |
| C408 | Overlapping lesion of bone & articular cartilage of limbs |
| C409 | Bone & articular cartilage of limb, NOS |
| C410 | Bones of skull & face |
| C411 | Mandible |
| C412 | Vertebral column |
| C413 | Ribs, sternum & clavicle |
| C414 | Pelvic bones, sacrum & coccyx |
| C418 | Overlapping lesion of bone & articular cartilage |
| C419 | Bone & articular cartilage, NOS |
| C420 | Blood |
| C421 | Bone marrow |
| C422 | Spleen |
| C423 | Reticuloendothelial system, NOS |
| C424 | Hematopoietic system, NOS |
| C440 | Skin of lip |
| C441 | Skin of eyelid |
| C442 | Skin of ear & external auricular canal |
| C443 | Skin of other & unspecified parts of face |
| C444 | Skin of scalp & neck |
| C445 | Skin of trunk |
| C446 | Skin of upper limb and shoulder |
| C447 | Skin of lower limb and hip |
| C448 | Overlapping lesion of skin |
| C449 | Skin, NOS |
| C470 | Peripheral nerves of head, face & neck |
| C471 | Peripheral nerves of upper limb and shoulder |
| C472 | Peripheral nerves of lower limb and hip |
| C473 | Peripheral nerves of thorax |
| C474 | Peripheral nerves of abdomen |
| C475 | Peripheral nerves of pelvis |
| C476 | Peripheral nerves of trunk, NOS |
| C478 | Overlapping lesion of peripheral nerves & autonomic nervous system |
| C479 | Peripheral nerves & autonomic nervous system, NOS |
| C480 | Retroperitoneum |
| C481 | Specified parts of peritoneum |
| C482 | Peritoneum, NOS |
| C488 | Overlapping lesion of retroperitoneum & peritoneum |
| C490 | Connective & soft tissue of head, face & neck |
| C491 | Connective & soft tissue of upper limb and shoulder |
| C492 | Connective & soft tissue of lower limb and hip |
| C493 | Connective & soft tissue of thorax |
| C494 | Connective & soft tissue of abdomen |
| C495 | Connective & soft tissue of pelvis |
| C496 | Connective & soft tissue of trunk, NOS |
| C498 | Overlapping lesion of connective & soft tissue |
| C499 | Connective & soft tissue, NOS |
| C500 | Nipple & areola |
| C501 | Central portion of breast |
| C502 | Upper-inner quadrant of breast |
| C503 | Lower-inner quadrant of breast |
| C504 | Upper-outer quadrant of breast |
| C505 | Lower-outer quadrant of breast |
| C506 | Axillary tail of breast |
| C508 | Overlapping lesion of breast |
| C509 | Breast, NOS |
| C510 | Labium majus |
| C511 | Labium minus |
| C512 | Clitoris |
| C518 | Overlapping lesion of vulva |
| C519 | Vulva, NOS |
| C529 | Vagina |
| C530 | Endocervix |
| C531 | Exocervix |
| C538 | Overlapping lesion of cervix uteri |
| C539 | Cervix uteri, NOS |
| C540 | Isthmus uteri |
| C541 | Endometrium |
| C542 | Myometrium |
| C543 | Fundus uteri |
| C548 | Overlapping lesion of corpus uteri |
| C549 | Corpus uteri, NOS |
| C559 | Uterus |
| C569 | Ovary |
| C570 | Fallopian tube |
| C571 | Broad ligament |
| C572 | Round ligament |
| C573 | Parametrium |
| C574 | Uterine adnexa |
| C577 | Oth specified female genital organs |
| C578 | Overlapping lesion of female genital organs |
| C579 | Female genital organ, NOS |
| C589 | Placenta |
| C600 | Prepuce |
| C601 | Glans penis |
| C602 | Body of penis |
| C608 | Overlapping lesion of penis |
| C609 | Penis, NOS |
| C619 | Prostate |
| C620 | Undescended testis |
| C621 | Descended testis |
| C629 | Testis, NOS |
| C630 | Epididymis |
| C631 | Spermatic cord |
| C632 | Scrotum |
| C637 | Oth specified male genital organs |
| C638 | Overlapping lesion of male genital organs |
| C639 | Male genital organ, NOS |
| C649 | Kidney, except renal pelvis |
| C659 | Renal pelvis |
| C669 | Ureter |
| C670 | Trigone of bladder |
| C671 | Dome of bladder |
| C672 | Lateral wall of bladder |
| C673 | Anterior wall of bladder |
| C674 | Posterior wall of bladder |
| C675 | Bladder neck |
| C676 | Ureteric orifice |
| C677 | Urachus |
| C678 | Overlapping lesion of bladder |
| C679 | Bladder, NOS |
| C680 | Urethra |
| C681 | Paraurethral glands |
| C688 | Overlapping lesion of urinary organs |
| C689 | Urinary system, NOS |
| C690 | Conjunctiva |
| C691 | Cornea |
| C692 | Retina |
| C693 | Choroid |
| C694 | Ciliary body |
| C695 | Lachrymal gland & duct |
| C696 | Orbit |
| C698 | Overlapping lesion of eye & adnexa |
| C699 | Eye, NOS |
| C700 | Cerebral meninges |
| C701 | Spinal meninges |
| C709 | Meninges, NOS |
| C710 | Cerebrum, except lobes & ventricles |
| C711 | Frontal lobe |
| C712 | Temporal lobe |
| C713 | Parietal lobe |
| C714 | Occipital lobe |
| C715 | Cerebral ventricle |
| C716 | Cerebellum |
| C717 | Brain stem |
| C718 | Overlapping lesion of brain |
| C719 | Brain, NOS |
| C720 | Spinal cord |
| C721 | Cauda equina |
| C722 | Olfactory nerve |
| C723 | Optic nerve |
| C724 | Acoustic nerve |
| C725 | Cranial nerves, NOS |
| C728 | Overlapping lesion of brain & central nervous system |
| C729 | Central nervous system, NOS |
| C739 | Thyroid gland |
| C740 | Cortex of adrenal gland |
| C741 | Medulla of adrenal gland |
| C749 | Adrenal gland, NOS |
| C750 | Parathyroid gland |
| C751 | Pituitary gland |
| C752 | Craniopharyngeal duct |
| C753 | Pineal gland |
| C754 | Carotid body |
| C755 | Aortic body & other paraganglia |
| C758 | Overlapping lesion of endocrine gland |
| C759 | Endocrine gland, NOS |
| C760 | Head, face & neck, NOS |
| C761 | Thorax, NOS |
| C762 | Abdomen, NOS |
| C763 | Pelvis, NOS |
| C764 | Upper limb, NOS |
| C765 | Lower limb, NOS |
| C767 | Other ill-defined sites |
| C768 | Overlapping lesion of ill-defined sites |
| C770 | Lymph nodes of head, face & neck |
| C771 | Intrathoracic lymph nodes |
| C772 | Intra-abdominal lymph nodes |
| C773 | Axillary & upper limb lymph nodes |
| C774 | Inguinal & lower limb lymph nodes |
| C775 | Pelvic lymph nodes |
| C778 | Lymph nodes of multiple regions |
| C779 | Lymph nodes, NOS |
| C809 | Unknown primary site |