SEER Inquiry System - Search

Assign 8230/2 (ductal carcinoma in situ, solid type/intraductal carcinoma, solid type) using Breast Solid Tumor Rules Table 3 as instructed in Rule H2 for in situ tumors. The carcinoma, NST row lists this histology in the subtype/variant column 3.

Coding histology for in situ breast tumor differs from invasive. While the majority of in situ breast primaries will be coded to DCIS 8500/2, there are others that are listed in Table 3 that should be coded according to the specific histology. Some codes have the word subtype or type as part of their histologic term so these can be coded based on the histologic term as listed in the table. We suggest you routinely review the histology tables to see if a term is listed.

Assign histology as 9982/3 (myelodysplastic neoplasm with low blasts and SF3B1 mutation). This is a new term for 9982/3. WHO Classification of Hematolymphoid Tumors, 5th edition, defines myelodysplastic neoplasm (MDS) with low blasts and SF3B1 mutation (MDS-SF3B1) as a myeloid neoplasm with cytopenia and dysplasia characterized by SF3B1 mutation and often ring sideroblasts.

If you cannot clarify this with the involved physicians, do not report this case of meningioma based on information provided. There is no indication that the patient was treated or further evaluated for meningioma.

A diagnosis of “tubulovillous adenoma with high grade dysplasia” in the duodenum is not equivalent to a diagnosis of “tubulovillous adenoma, high grade.”

Tubulovillous adenoma, high grade (8263/2) is not reportable as of 2022.

High grade dysplasia (glandular intraepithelial neoplasia, grade III) is reportable in the esophagus, stomach, and small intestine (8148/2).

Report carcinoid, NOS of the appendix. As of 01/01/2015, the ICD-O-3 behavior code changed from /1 to /3.

Do not include the disease in the sequencing if the original hematolymphoid disease was not reportable at time of diagnosis.

The 2025 SEER Manual Sequence Number--Central Coding Instruction 1.a advises: A ‘reportable’ primary refers to the site/histology/behavior of the tumor and the years when reporting was required. Review of the reportability requirements in effect during the diagnosis year will be needed.

Code meningioma, NOS (9530/0) based on the integrated diagnosis and histological classification. WHO Classification of Central Nervous System Tumors, 5th edition, states that brain invasion is a criterion for the diagnosis of CNS WHO grade 2 meningioma, and there is no statement of brain invasion, atypical meningioma, or other WHO grade 2 lesions. WHO has not proposed behavior codes based on WHO grade alone.

Report pheochromocytoma (8700/3). According to WHO Classification of Endocrine and Neuroendocrine Tumors, 5th edition, patients with pheochromocytomas are currently considered to have a lifelong risk of metastases and therefore conceptually they are all considered ‘malignant.’

Code celiac axis lymph nodes as regional in EOD Regional Nodes for liver primaries.

Assign code 01 (White) for Race 1 when described as Indigenous-Latino/a or Indigenous-Latinx. Indigenous-Latinx is an umbrella term for Indigenous migrants to the United States from Latin America including South and Central America, the Caribbean, and Mexico (for example, Maya, Mixteco, Purépecha, Taino, Zapoteco, etc.). Latin America is listed in Appendix D of the 2025 SEER Manual as White.

Assign code 6 (Spanish, NOS; Hispanic, NOS; Latino, NOS) for Spanish Surname or Origin for Indigenous-Latino/a or Indigenous-Latinx in the absence of more specific information. Code 6 description includes the statement, There is evidence, other than surname or birth surname (maiden name), that the person is Hispanic but he/she cannot be assigned to any of the categories 1-5.

Assign code 03 (American Indian or Alaska Native) when described as First Nations. First Nations usually refers to Indigenous peoples for ethnic groups who are the original or earliest known inhabitants of an area. The term ‘First Nations’ can be applied to individuals, but technically refers only to those who have Indian status under Canadian law as part of a recognized community. Within Canada, the term First Nations is generally used for Indigenous peoples other than Inuit and Métis. Outside Canada, the term can refer to Indigenous Australians, U.S. tribes within the Pacific Northwest, as well as supporters of the Cascadian independence movement.