The table below provides the definition for this International Classification of Childhood Cancer, Third edition (IARC 2017) variable. To see other variable definitions, see the ICCC home page.

Site Group ICD-O-3 Histology ICD-O-3 Primary Site ICD-O-3 Behavior Extended Recode Regular Recode
I. Leukemias, Myeloproliferative And Myelodysplastic Diseases
(a) Lymphoid leukemias
(a.1) Precursor cell leukemias 9811-9818, 9837 420, 421, 423, 424, 809 3 001 011
9835, 9836 000-809 3 001 011
(a.2) Mature B-cell leukemias 9823 420, 421, 423, 424, 809 3 002 011
9826, 9832, 9833, 9940 000-809 3 002 011
(a.3) Mature T-cell and NK cell leukemias 9827 420, 421, 423, 424, 809 3 003 011
9831, 9834, 9948 000-809 3 003 011
(a.4) Lymphoid leukemia, NOS 9591 420, 421, 423, 424 3 004 011
9820 000-809 3 004 011
(b) Acute myeloid leukemias 9840, 9861, 9865-9867, 9869-9874, 9891, 9895-9897, 9898, 9910, 9911, 9920, 9930, 9931 000-809 3 005 012
(c) Chronic myeloproliferative diseases 9863, 9875, 9876, 9950, 9960-9964 000-809 3 006 013
(d) Myelodysplastic syndrome and other myeloproliferative diseases 9945, 9946, 9975, 9980, 9982-9987, 9989, 9991, 9992 000-809 3 007 014
(e) Unspecified and other specified leukemias 9800, 9801, 9805-9809, 9860, 9965-9967 000-809 3 008 015
II. Lymphomas and reticuloendothelial neoplasms
(a) Hodgkin lymphomas 9650-9655, 9659, 9661-9665, 9667 000-809 3 009 021
(b) Non-Hodgkin lymphomas (except Burkitt lymphoma)
(b.1) Precursor cell lymphomas 9727-9729 000-809 3 010 022
9811-9818, 9837 000-419, 422, 440-779 3 010 022
(b.2) Mature B-cell lymphomas (except Burkitt lymphoma) 9597, 9670, 9671, 9673, 9675, 9678-9680, 9684, 9688-9691, 9695, 9698, 9699, 9712, 9731-9735, 9737, 9738, 9761, 9762, 9764-9766, 9769, 9970, 9971 000-809 3 011 022
9823 000-419, 422, 440-779 3 011 022
(b.3) Mature T-cell and NK-cell lymphomas 9700-9702, 9705, 9708, 9709, 9714, 9716-9719, 9724-9726, 9767, 9768 000-809 3 012 022
9827 000-419, 422, 440-779 3 012 022
(b.4) Non-Hodgkin lymphomas, NOS 9591 000-419, 422, 440-779, 809 3 013 022
9760 000-809 3 013 022
(c) Burkitt lymphoma 9687 000-809 3 014 023
(d) Miscellaneous lymphoreticular neoplasms 9740-9742, 9750, 9751, 9754-9759 000-809 3 015 024
(e) Unspecified lymphomas 9590, 9596 000-809 3 016 025
III. CNS and Miscellaneous Intracranial and Intraspinal Neoplasms
(a) Ependymomas and choroid plexus tumor
(a.1) Ependymomas 9383, 9391-9394, 9396 000-809 0-1, 3 017 031
(a.2) Choroid plexus tumor 9390 000-809 0-1, 3 018 031
(b) Astrocytomas 9380 723 0-1, 3 019 032
9384, 9400-9411, 9420-9424, 9425, 9440-9442 000-809 0-1, 3 019 032
(c) Intracranial and intraspinal embryonal tumors
(c.1) Medulloblastomas 9470-9472, 9474-9478, 9480 000-809 0-1, 3 020 033
(c.2) Primitive neuroectodermal tumor (PNET) 9473 000-809 0-1, 3 021 033
(c.3) Medulloepithelioma 9501-9504 700-729 0-1, 3 022 033
(c.4) Atypical teratoid/rhabdoid tumor 9508 000-809 0-1, 3 023 033
(d) Other gliomas
(d.1) Oligodendrogliomas 9450, 9451, 9460 000-809 0-1, 3 024 034
(d.2) Mixed and unspecified gliomas 9380 700-722, 724-729, 751, 753 0-1, 3 025 034
9382, 9385 000-809 0-1, 3 025 034
(d.3) Neuroepithelial glial tumors of uncertain origin 9381, 9430, 9431, 9444, 9445 000-809 0-1, 3 026 034
(e) Other specified intracranial and intraspinal neoplasms
(e.1) Pituitary adenomas and carcinomas 8158, 8290 751 0-1, 3 027 035
8270-8281, 8300 000-809 0-1, 3 027 035
(e.2) Tumours of the sellar region (craniopharyngiomas) 9350-9352, 9432, 9582 000-809 0-1, 3 028 035
(e.3) Pineal parenchymal tumors 9360-9362, 9395 000-809 0-1, 3 029 035
(e.4) Neuronal and mixed neuronal-glial tumors 9412, 9413, 9492, 9493, 9505-9507, 9509 000-809 0-1, 3 030 035
(e.5) Meningiomas 9530-9539 000-809 0-1, 3 031 035
(f) Unspecified intracranial and intraspinal neoplasms 8000-8005 700-729, 751-753 0-1, 3 032 036
IV. Neuroblastoma And Other Peripheral Nervous Cell Tumors
(a) Neuroblastoma and ganglioneuroblastoma 9490, 9500 000-809 3 033 041
(b) Other peripheral nervous cell tumors 8680-8683, 8690-8693, 8700, 9520-9523 000-809 3 034 042
9501-9504 000-699, 739-768, 809 3 034 042
V. Retinoblastoma 9510-9514 000-809 3 035 050
VI. Renal Tumors
(a) Nephroblastoma and other non-epithelial renal tumors
(a.1) Nephroblastoma 8959, 8960 000-809 3 036 061
(a.2) Rhabdoid renal tumor 8963 649 3 037 061
(a.3) Kidney sarcomas 8964-8967 000-809 3 038 061
(b) Renal carcinomas 8010-8041, 8050-8075, 8082, 8120-8122, 8130-8141, 8143, 8155, 8190-8201, 8210, 8211, 8221-8231, 8240, 8241, 8244-8246, 8260-8263, 8290, 8310, 8320, 8323, 8325, 8401, 8430, 8440, 8480-8490, 8504, 8510, 8550, 8560-8562, 8570-8573, 9013 649 3 039 062
8311, 8312, 8316-8319, 8361 000-809 3 039 062
(c) Unspecified malignant renal tumors 8000-8005 649 3 040 063
VII. Hepatic Tumors
(a) Hepatoblastoma and mesenchymal tumors of liver
(a.1) Hepatoblastoma 8970, 8975 000-809 3 041 071
(a.2) Rhabdoid hepatic tumor 8963 220, 221 3 042 071
(a.3) Embryonal sarcoma of liver 8991 220, 221 3 043 071
(b) Hepatic carcinomas 8010-8041, 8050-8075, 8082, 8120-8122, 8140, 8141, 8143, 8148, 8155, 8158, 8190-8201, 8202, 8210, 8211, 8230, 8231, 8240, 8241, 8244-8246, 8260-8264, 8310, 8320, 8323, 8401, 8430, 8440, 8470, 8480-8490, 8503, 8504, 8510, 8550, 8560-8562, 8570-8573, 9013 220, 221 3 044 072
8160-8162, 8170-8180 000-809 3 044 072
(c) Unspecified malignant hepatic tumors 8000-8005 220, 221 3 045 073
VIII. Malignant Bone Tumors
(a) Osteosarcomas 9180-9187, 9191-9195, 9200 400-419, 760-768, 809 3 046 081
(b) Chondrosarcomas 9210, 9220, 9240 400-419, 760-768, 809 3 047 082
9211-9213, 9221, 9222, 9230, 9241-9243 000-809 3 047 082
9231 400-419 3 047 082
(c) Ewing tumor and related sarcomas of bone
(c.1) Ewing tumor and Askin tumor of bone 9260 400-419, 760-768, 809 3 048 083
9365 400-419 3 048 083
(c.2) Peripheral neuroectodermal tumor (pPNET) of bone 9364 400-419 3 049 083
(d) Other specified malignant bone tumors
(d.1) Malignant fibrous neoplasms of bone 8810, 8811, 8818, 8823, 8830 400-419 3 050 084
8812, 9262 000-809 3 050 084
(d.2) Malignant chordomas 9370-9372 000-809 3 051 084
(d.3) Odontogenic malignant tumors 9270-9275, 9280-9282, 9290, 9300-9302, 9310-9312, 9320-9322, 9330, 9340-9342 000-809 3 052 084
(d.4) Miscellaneous malignant bone tumors 9250, 9261 000-809 3 053 084
(e) Unspecified malignant bone tumors 8000-8005, 8800, 8801, 8803-8805 400-419 3 054 085
IX. Soft Tissue And Other Extraosseous Sarcomas
(a) Rhabdomyosarcomas 8900-8905, 8910, 8912, 8920 000-809 3 055 091
8991 000-218, 239-809 3 055 091
(b) Fibrosarcomas, peripheral nerve sheath tumors and oth fibrous neoplasms
(b.1) Fibroblastic and myofibroblastic tumors 8810, 8811, 8813-8817, 8821, 8823, 8834-8835 000-399, 440-768, 809 3 056 092
8820, 8822, 8824-8828, 9150, 9160 000-809 3 056 092
(b.2) Nerve sheath tumors 9540-9571 000-809 3 057 092
(b.3) Other fibromatous neoplasms 9491, 9580 000-809 3 058 092
(c) Kaposi sarcoma 9140 000-809 3 059 093
(d) Other specified soft tissue sarcomas
(d.1) Ewing tumor and Askin tumor of soft tissue 9260 000-399, 440-449, 470-759 3 060 094
9365 000-399, 470-639, 659-768, 809 3 060 094
(d.2) Peripheral neuroectodermal tumor (pPNET) of soft tissue 9364 000-399, 440-449, 470-699, 739-768, 809 3 061 094
(d.3) Extrarenal extrahepatic rhabdoid tumor 8963 000-218, 239-639, 659-699, 739-768, 809 3 062 094
(d.4) Liposarcomas 8850-8858, 8860-8862, 8870, 8880, 8881 000-809 3 063 094
(d.5) Fibrohistiocytic tumors 8830 000-399, 440-768, 809 3 064 094
8831-8833, 8836, 9251, 9252 000-809 3 064 094
(d.6) Leiomyosarcomas 8890-8898 000-809 3 065 094
(d.7) Synovial sarcomas 9040-9044 000-809 3 066 094
(d.8) Blood vessel tumors 9120-9125, 9130-9133, 9135-9138, 9141, 9142, 9161, 9170-9175 000-809 3 067 094
(d.9) Osseous and chondromatous neoplasms of soft tissue 9180-9187, 9191-9195, 9200, 9210, 9220, 9240 220, 300-388, 470-509, 600-619, 649, 670-679, 696, 700-729 3 068 094
9231 000-399, 440-768, 809 3 068 094
(d.10) Alveolar soft parts sarcoma 9581 000-809 3 069 094
(d.11) Miscellaneous soft tissue sarcomas 8587, 8710-8714, 8806, 8840-8842, 8921, 8990, 8992, 9045, 9373 000-809 3 070 094
(e) Unspecified soft tissue sarcomas 8800-8805 000-399, 440-768, 809 3 071 095
X. Germ Cell Tumors, Trophoblastic Tumors And Neoplasms Of Gonads
(a) Intracranial and intraspinal germ cell tumors
(a.1) Intracranial and intraspinal germinomas 9060-9065 700-729, 751-753 0-1, 3 072 101
(a.2) Intracranial and intraspinal teratomas 9080-9084 700-729, 751-753 0-1, 3 073 101
(a.3) Intracranial and intraspinal embryonal carcinomas 9070, 9072 700-729, 751-753 0-1, 3 074 101
(a.4) Intracranial and intraspinal yolk sac tumor 9071 700-729, 751-753 0-1, 3 075 101
(a.5) Intracranial and intraspinal choriocarcinoma 9100, 9101 700-729, 751-753 0-1, 3 076 101
(a.6) Intracranial and intraspinal tumors of mixed forms 9085 700-729, 751-753 0-1, 3 077 101
(b) Malignant extracranial and extragonadal germ cell tumors
(b.1) Malignant germinomas of extracranial and extragonadal sites 9060-9065 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 078 102
(b.2) Malignant teratomas of extracranial and extragonadal sites 9080-9084 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 079 102
(b.3) Embryonal carcinomas of extracranial and extragonadal sites 9070, 9072 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 080 102
(b.4) Yolk sac tumor of extracranial and extragonadal sites 9071 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 081 102
(b.5) Choriocarcinomas of extracranial and extragonadal sites 9100, 9101, 9103-9105 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 082 102
(b.6) Oth/unspec malig mixed germ cell tumors of extracranial/extragonadal 9085, 9086 000-559, 570-619, 630-699, 739-750, 754-768, 809 3 083 102
(c) Malignant gonadal germ cell tumors
(c.1) Malignant gonadal germinomas 9060-9065 569, 620-629 3 084 103
(c.2) Malignant gonadal teratomas 9080-9084, 9090, 9091 569, 620-629 3 085 103
(c.3) Gonadal embryonal carcinomas 9070, 9072 569, 620-629 3 086 103
(c.4) Gonadal yolk sac tumor 9071 569, 620-629 3 087 103
(c.5) Gonadal choriocarcinoma 9100-9105 569, 620-629 3 088 103
(c.6) Malignant gonadal tumors of mixed forms 9085 569, 620-629 3 089 103
(c.7) Malignant gonadal gonadoblastoma 9073 569, 620-629 3 090 103
(d) Gonadal carcinomas 8010-8041, 8044, 8050-8075, 8082, 8120-8123, 8130-8141, 8143, 8153, 8190-8201, 8210, 8211, 8213, 8221-8241, 8244-8246, 8260-8263, 8290, 8310, 8320, 8323, 8380-8384, 8430, 8440-8442, 8450, 8470, 8480-8490, 8504, 8510, 8550, 8560-8562, 8570-8573, 9000, 9014 569, 620-629 3 091 104
8313, 8443, 8444, 8451, 8474, 9015 000-809 3 091 104
8158, 8243, 8410, 8452, 8460-8463, 8471-8473, 8576 569 3 091 104
(e) Other and unspecified malignant gonadal tumors 8590-8671 000-809 3 092 105
8000-8005 569, 620-629 3 092 105
XI. Other Malignant Epithelial Neoplasms And Malignant Melanomas
(a) Adrenocortical carcinomas 8158 740 3 093 111
8370-8375 000-809 3 093 111
(b) Thyroid carcinomas 8010-8041, 8050-8075, 8082, 8120-8122, 8130-8141, 8158, 8190, 8200, 8201, 8211, 8230, 8231, 8244-8246, 8260-8263, 8290, 8310, 8320, 8323, 8324, 8333, 8430, 8440, 8480, 8481, 8510, 8560-8562, 8570-8573, 8589 739 3 094 112
8330-8332, 8334-8337, 8340-8347, 8350, 8588 000-809 3 094 112
(c) Nasopharyngeal carcinomas 8010-8041, 8050-8075, 8082, 8083, 8120-8122, 8130-8141, 8190, 8200, 8201, 8211, 8230, 8231, 8244-8246, 8260-8263, 8290, 8310, 8320, 8323, 8430, 8440,8480, 8481, 8500-8551, 8560-8562, 8570-8576 110-119 3 095 113
(d) Malignant melanomas 8720-8780, 8790 000-809 3 096 114
(e) Skin carcinomas 8010-8041, 8050-8075, 8078, 8081, 8082, 8090-8098, 8100-8110, 8140, 8143, 8147, 8190, 8200, 8211, 8240, 8246, 8247, 8260, 8263, 8310, 8320, 8323, 8390-8420, 8430, 8480, 8540, 8542, 8560, 8570-8573 440-449, 519, 609, 632 3 097 115
(f) Other and unspecified carcinomas
(f.1) Carcinomas of salivary glands 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 079-089 3 098 116
(f.2) Carcinomas of colon and rectum 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 180, 182-189, 199, 209, 210-218 3 099 116
(f.3) Carcinomas of appendix 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 181 3 100 116
(f.4) Carcinomas of lung 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333,8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 340-349 3 101 116
(f.5) Carcinomas of thymus 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 379 3 102 116
(f.6) Carcinomas of breast 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 500-509 3 103 116
(f.7) Carcinomas of cervix uteri 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 530-539 3 104 116
(f.8) Carcinomas of bladder 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 670-679 3 105 116
(f.9) Carcinomas of eye 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 690-699 3 106 116
(f.10) Carcinomas of other specified sites 8010-8077, 8080-8086, 8098, 8120-8157, 8163, 8190-8265, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 000-069, 090-109, 129-179, 239-339, 380-399, 480-488, 510-518, 529, 540-559, 570-608, 619, 630-631, 637-639, 659-669, 680-689, 700-729, 750-759 3 107 116
8158, 8290 000-069, 090-109, 129-179, 239-339, 380-399, 480-488, 510-529, 540-559, 570-619, 630-639, 659-669, 680-689, 750, 752-759 3 107 116
(f.11) Carcinomas of unspecified site 8010-8077, 8080-8086, 8098, 8120-8158, 8163, 8190-8265, 8290, 8310, 8314-8315, 8320-8324, 8333, 8360, 8380-8384, 8401, 8402, 8405, 8406, 8410, 8430-8442, 8450, 8452-8454, 8460, 8461, 8470, 8480-8586, 8589, 8941, 8983, 9000, 9010-9014, 9016, 9020, 9030 760-768, 809 3 108 116
XII. Other And Unspecified Malignant Neoplasms
(a) Other specified malignant tumors
(a.1) Malignant gastrointestinal stromal tumor 8936 000-809 3 109 121
(a.2) Pancreatoblastoma 8971 000-809 3 110 121
(a.3) Pulmonary blastoma and pleuropulmonary blastoma 8972, 8973 000-809 3 111 121
(a.4) Other complex mixed and stromal neoplasms 8930-8935, 8940, 8950, 8951, 8974, 8980-8982 000-809 3 112 121
(a.5) Mesothelioma 9050-9055 000-809 3 113 121
(a.6) Other specified malignant tumors 9110, 9363 000-809 3 114 121
(b) Other unspecified malignant tumors 8000-8005 000-218, 239-399, 420-559, 570-619, 630-639, 659-699, 739-750, 754-809 3 115 122
Not classified by SEER or in situ 999 999

1. Steliarova-Foucher E, Colombet M, Ries LAG, Rous B, Stiller CA. Classification of tumours. In: Steliarova-Foucher E, Colombet M, Ries LAG, Moreno F, Dolya A, Shin HY, Hesseling P, Stiller CA. International Incidence of Childhood Cancer, Volume III. Lyon: International Agency for Research on Cancer, In press.

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