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To see how this variable is used in SEER publications and to read about other site recode variables, please see the Site Recode home page.

Site Group ICD-O-3 Site ICD-O-3 Histology (Type) ICD-O-3 Behavior Recode
Head and Neck
Lip C000-C006, C008-C009 excluding 9050-9055, 9140, 9590-9993 2-3 01
Tongue Anterior C020-C023, C028-C029 02
Gum C030-C031, C039, C062 03
Floor of Mouth C040-C041, C048-C049 04
Palate excluding Soft and Uvula C050 05
Buccal Mucosa C060, C061 06
Mouth Other C058-C059, C068-C069 07
Major Salivary Glands C079, C080-C081, C088-C089 08
Nasopharynx C110-C113, C118-C119 09
Oropharynx C019, C024, C051-C052, C090-C091, C098-C099, C100, C102-C104, C108-C109 10
Hypopharynx C129, C130-C132, C138-C139 11
Pharynx and Oral Cavity Other C140, C142, C148 12
Nasal Cavity and Paranasal Sinuses C300, C310, C311 13
Sinus Other C301, C312-C313, C318-C319 14
Larynx C101, C320-C323, C328-C329 15
Digestive System
Esophagus C150-C155, C158-C159 excluding 9050-9055, 9140, 9590-9993 2-3 16
Stomach C160-C166, C168-C169 17
Small Intestine C170-C173, C178-C179 18
Appendix C181 19
Colon and Rectum (excluding Appendix) C180, C182-C189, C199, C209 20
Anus, Anal Canal and Anorectum C210-C212, C218 21
Liver C220 22
Intrahepatic Bile Duct C221 23
Gallbladder C239 24
Extrahepatic Bile Ducts C240 25
Ampulla of Vater C241 26
Biliary Other C248-C249 27
Pancreas C250-C254, C257-C259 28
Digestive Other C260, C268-C269 29
Respiratory Tract and Thorax
Lung and Bronchus C340-C343, C348-C349 excluding 9050-9055, 9140, 9590-9993 2-3 30
Thymus C379 31
Heart, Mediastinum and Pleura C380-C384, C388 32
Trachea, and Respiratory Other C339, C390, C398-C399 33
Bones and Soft Tissue
Bones and Joints C400-C403, C408-C414, C418-C419 excluding 9050-9055, 9140, 9590-9993 2-3 34
Retroperitoneum and Peritoneum C480-C482, C488 35
Soft Tissue C470-C476, C478-C479, C490-C496, C498-C499 36
Skin
Melanoma of the Skin C440-C449 8720-8790 2-3 37
Other Non-Epithelial Skin C440-C449 excluding 8720-8790, 9050-9055, 9140, 9590-9993 38
Breast C500-C506, C508-C509 excluding 9050-9055, 9140, 9590-9993 2-3 39
Female Genital System
Vulva C510-C512, C518-C519 excluding 9050-9055, 9140, 9590-9993 2-3 40
Vagina C529 41
Cervix C530-C531, C538-C539 42
Corpus C540-C543, C548-C549, C559 43
Ovary C569 44
Fallopian Tube C570 45
Adnexa Other and Genital Female Other C571-C574, C577-C579 46
Placenta C589 47
Male Genital System
Penis C600-C602, C608-C609 excluding 9050-9055, 9140, 9590-9993 2-3 48
Prostate C619 49
Testis C620-C621, C629 50
Genital Male Other C630-C632, C637-C639 51
Urinary System
Kidney Parenchyma C649 excluding 9050-9055, 9140, 9590-9993 2-3 52
Kidney Renal Pelvis C659 53
Ureter C669 54
Urinary Bladder C670-C679 55
Urethra C680 56
Urinary Other C681, C688-C689 57
Eye and Orbit C690-C696, C698-C699 excluding 9050-9055, 9140, 9590-9993 2-3 58
Central Nervous System
Meninges (Malignant) C700, C701, C709 excluding 9050-9055, 9140, 9590-9993 2-3 59
Brain (Malignant) C710-C719 60
CNS Other (Malignant) C720-C725, C728-C729 61
Endocrine System
Intracranial Gland (Malignant) C751-C753 excluding 9050-9055, 9140, 9590-9993 2-3 62
Thyroid C739 63
Adrenal Gland C740-C741, C749 64
Parathyroid C750 65
Endocrine Other C754-C755, C758-C759 66
HEMATOPOIETIC NEOPLASMS
Hodgkin Lymphomas C000-C809 9650-9655, 9659, 9661-9665, 9667 2-3 67
B-cell Neoplasms
Large B-cell lymphoma C000-C809 9596, 9678-9680, 9684, 9687-9688, 9712, 9735, 9737-9738, 9766, 9826 2-3 68
Chronic lymphocytic leukemia (CLL)/Small lymphocytic lymphoma C000-C809 9670, 9823 69
Plasma Cell Neoplasms C000-C809 9731-9734, 9765, 9769 70
Other B-cell leukemia/lymphomas or Lymphoma, NOS C000-C809 9590, 9591, 9597, 9671, 9673, 9675, 9689-9691, 9695, 9698-9699, 9727 (2010+), 9760-9762, 9764, 9820, 9833, 9940 71
T-cell Neoplasms
Mycosis Fungoides/Sezary Syndrome C000-C809 9700, 9701 2-3 72
Other T and NK-cell leukemias/lymphomas C000-C809 9702, 9705, 9708-9709, 9714-9719, 9724-9726, 9767-9768, 9827, 9831, 9832, 9834, 9948 73
Precursor Lymphoid Neoplasms C000-C809 9727 (<2010), 9728-9729, 9811-9819, 9835-9837 2-3 74
Acute Myeloid Leukemias C000-C809 9840, 9861, 9865-9867, 9869-9874, 9877-9879, 9891, 9895-9898, 9910-9912, 9920, 9930-9931, 9987 2-3 75
Other Hematopoietic Neoplasms
Other Leukemias C000-C809 9742, 9800-9801, 9805, 9806-9809, 9860 2-3 76
Myelodysplastic Syndromes C000-C809 9980, 9982-9986, 9989, 9991-9993 77
Myeloproliferative/Myelodysplastic syndromes, including MDS/MPN overlap C000-C809 9740-9741, 9749-9759, 9965-9968, 9970-9971 78
Miscellaneous Hematopoietic Neoplasms C000-C809 9740-9741, 9749-9759, 9965-9968, 9970-9971 79
Mesothelioma C000-C809 9050-9055 2-3 80
Kaposi Sarcoma C000-C809 9140 2-3 81
Miscellaneous Neoplasms C420-C424, C760-C768, C770-C779, C809 Excluding 9050-9055, 9140, 9590-9993 2-3 82
Brain, CNS Other and Intracranial Gland (Benign and Borderline) C700-C729, C751-C753 All 0-1 84
Invalid Not classified in this table. 99