SEER site groups based on International Classification of Childhood Cancer, Third Edition (ICCC–3) based on ICD–O–31

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SEER site groups, histologic type, and primary site
Site Group Histologic Type Primary Site
I Leukemias, myeloproliferative diseases, and myelodysplastic diseases
(a) Lymphoid leukemias 9820, 9823, 9826, 9827, 9831–9837, 9940, 9948 C000–C809
(b) Acute myeloid leukemias 9840, 9861, 9866, 9867, 9870–9874, 9891, 9895–9897, 9910, 9920, 9931 C000–C809
(c) Chronic myeloproliferative diseases 9863, 9875, 9876, 9950, 9960–9964 C000–C809
(d) Myelodysplastic syndrome and other myeloproliferative diseases 9945, 9946, 9975, 9980, 9982–9987, 9989 C000–C809
(e) Unspecified and other specified leukemias 9800, 9801, 9805, 9860, 9930 C000–C809
II Lymphomas and reticuloendothelial neoplasms
(a) Hodgkin lymphomas 9650–9655, 9659, 9661–9665, 9667 C000–C809
(b) Non-Hodgkin lymphomas (except Burkitt lymphoma) 9591, 9670, 9671, 9673, 9675, 9678–9680, 9684, 9689–9691, 9695, 9698–9702, 9705, 9708, 9709, 9714, 9716–9719, 9727–9729, 9731–9734, 9760–9762, 9764–9769, 9970 C000–C809
(c) Burkitt lymphoma 9687 C000–C809
(d) Miscellaneous lymphoreticular neoplasms 9740–9742, 9750, 9754–9758 C000–C809
(e) Unspecified lymphomas 9590, 9596 C000–C809
III CNS and miscellaneous intracranial and intraspinal neoplasms
(a) Ependymomas and choroid plexus tumor 9383, 9390–9394 C000–C809
(b) Astrocytomas 9380 C723
9384, 9400–9411, 9420, 9421–9424, 9440–9442 C000–C809
(c) Intracranial and intraspinal embryonal tumors 9470–9474, 9480, 9508 C000–C809
9501–9504 C700–C729
(d) Other gliomas 9380 C700–C722, C724–C729, C751, C753
9381, 9382, 9430, 9444, 9450, 9451, 9460 C000–C809
(e) Other specified intracranial and intraspinal neoplasms 8270–8281, 8300, 9350–9352, 9360–9362, 9412, 9413, 9492, 9493, 9505–9507, 9530–9539, 9582 C000–C809
(f) Unspecified intracranial and intraspinal neoplasms 8000–8005 C700–C729, C751–C753
IV Neuroblastoma and other peripheral nervous cell tumors
(a) Neuroblastoma and ganglioneuroblastoma 9490, 9500 C000–C809
(b) Other peripheral nervous cell tumors 8680–8683, 8690–8693, 8700, 9520–9523 C000–C809
9501–9504 C000–C699, C739–C768, C809
V Retinoblastoma 9510–9514 C000–C809
VI Renal tumors
(a) Nephroblastoma and other nonepithelial renal tumors 8959, 8960, 8964–8967 C000–C809
8963, 9364 C649
(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, 8401, 8430, 8440, 8480–8490, 8504, 8510, 8550, 8560–8576 C649
8311–8312, 8316–8319, 8361 C000–C809
(c) Unspecified malignant renal tumors 8000–8005 C649
VII Hepatic tumors
(a) Hepatoblastoma 8970 C000–C809
(b) Hepatic carcinomas 8010–8041, 8050–8075, 8082, 8120–8122, 8140, 8141, 8143, 8155, 8190–8201, 8210–8211, 8230, 8231, 8240–8241, 8244–8246, 8260–8264, 8310, 8320, 8323, 8401, 8430, 8440, 8480–8490, 8504, 8510, 8550, 8560–8576 C220, C221
8160–8180 C000–C809
(c) Unspecified malignant hepatic tumors 8000–8005 C220–C221
VIII Malignant bone tumors
(a) Osteosarcomas 9180–9187, 9191–9195, 9200 C400–C419, C760–C768, C809
(b) Chondrosarcomas 9210, 9220, 9240 C400–C419, C760–C768, C809
9221, 9230, 9241–9243 C000–C809
(c) Ewing tumor and related sarcomas of bone 9260 C400–C419, C760–C768, C809
9363–9365 C400–C419
(d) Other specified malignant bone tumors 8810–8811, 8823, 8830 C400–C419
8812, 9250, 9261, 9262, 9270–9275, 9280–9282, 9290, 9300–9302, 9310–9312, 9320–9322, 9330, 9340–9342, 9370–9372 C000–C809
(e) Unspecified malignant bone tumors 8000–8005, 8800–8801, 8803–8805 C400–C419
IX Soft tissue and other extraosseous sarcomas
(a) Rhabdomyosarcomas 8900–8905, 8910, 8912, 8920, 8991 C000–C809
(b) Fibrosarcomas, peripheral nerve sheath tumors, and other fibrous neoplasms 8810, 8811, 8813–8815, 8821, 8823, 8834–8835 C000–C399, C440–C768, C809
8820, 8822, 8824–8827, 9150, 9160, 9491, 9540–9571, 9580 C000–C809
(c) Kaposi sarcoma 9140 C000–C809
(d) Other specified soft tissue sarcomas 8587, 8710–8713, 8806, 8831–8833, 8836, 8840–8842, 8850–8858, 8860–8862, 8870, 8880, 8881, 8890–8898, 8921, 8982, 8990, 9040–9044, 9120–9125, 9130–9133, 9135, 9136, 9141–9142, 9161, 9170–9175, 9231, 9251–9252, 9373, 9581 C000–C809
8830 C000–C399, C440–C768, C809
8963 C000–C639, C659–C699, C739–C768, C809
9180, 9210, 9220, 9240 C490–C499
9260 C000–C399, C470–C759
9364 C000–C399, C470–C639, C659–C699, C739–C768, C809
9365 C000–C399, C470–C639, C659–C768, C809
(e) Unspecified soft tissue sarcomas 8800–8805 C000–C399, C440–C768, C809
X Germ cell tumors, trophoblastic tumors, and neoplasms of gonads
(a) Intracranial and intraspinal germ cell tumors 9060–9065, 9070–9072, 9080–9085, 9100, 9101 C700–C729, C751–C753
(b) Malignant extracranial and extragonadal germ cell tumors 9060–9065, 9070–9072, 9080–9085, 9100–9105 C000–C559, C570–C619, C630–C699, C739–C750, C754–C768, C809
(c) Malignant gonadal germ cell tumors 9060–9065, 9070–9073, 9080–9085, 9090, 9091, 9100, 9101 C569, C620–C629
(d) Gonadal carcinomas 8010–8041, 8050–8075, 8082, 8120–8122, 8130–8141, 8143, 8190–8201, 8210–8211, 8221–8241, 8244–8246, 8260–8263, 8290, 8310, 8313, 8320, 8323, 8380–8384, 8430, 8440, 8480–8490, 8504, 8510, 8550, 8560–8573, 9000, 9014–9015 C569, C620–C629
8441–8444, 8450, 8451, 8460–8473 C000–C809
(e) Other and unspecified malignant gonadal tumors 8590–8671 C000–C809
8000–8005 C569, C620–C629
XI Other malignant epithelial neoplasms and malignant melanomas
(a) Adrenocortical carcinomas 8370–8375 C000–C809
(b) Thyroid carcinomas 8010–8041, 8050–8075, 8082, 8120–8122, 8130–8141, 8190, 8200, 8201, 8211, 8230, 8231, 8244–8246, 8260–8263, 8290, 8310, 8320, 8323, 8430, 8440, 8480, 8481, 8510, 8560–8573 C739
8330–8337, 8340–8347, 8350 C000–C809
(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, 8500–8576 C110–C119
(d) Malignant melanomas 8720–8780, 8790 C000–C809
(e) Skin carcinomas 8010–8041, 8050–8075, 8078, 8082, 8090–8110, 8140, 8143, 8147, 8190, 8200, 8240, 8246, 8247, 8260, 8310, 8320, 8323, 8390–8420, 8430, 8480, 8542, 8560, 8570–8573, 8940–8941 C440–C449
(f) Other and unspecified carcinomas 8010–8084, 8120–8157, 8190–8264, 8290, 8310, 8313–8315, 8320–8325, 8360, 8380–8384, 8430–8440, 8452–8454, 8480–8586, 8588–8589, 8940, 8941, 8983, 9000, 9010–9016, 9020, 9030 C000–C109, C129–C218, C239–C399, C480–C488, C500–C559, C570–C619, C630–C639, C659–C729, C750–C768, C809
XII Other and unspecified malignant neoplasms
(a) Other specified malignant tumors 8930–8936, 8950, 8951, 8971–8981, 9050–9055, 9110 C000–C809
9363 C000–C399, C470–C759
(b) Other unspecified malignant tumors 8000–8005 C000–C218, C239–C399, C420–C559, C570–C619, C630–C639, C659–C699, C739–C750, C754–C809
Not Classified by ICCC or in situ

CNS = central nervous system
ICCC = International Classification of Childhood Cancer
ICD-O-3 = International Classification of Diseases for Oncology, Third Edition

1 Steliarova–Foucher E, Stiller C, Lacour B, Kaatsch P. International Classification of Childhood Cancer, Third Edition. Cancer 2005;103:1457–1467.