Primary Site

This input is used for staging

Notes

See the SEER Program Coding Manual 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