SEER Inquiry System - Search

Histology: How is this field coded for a perivascular epithelioid cell neoplasm (PEComa) of uncertain malignant potential that is malignant based on the presence of metastases? See Discussion.

Histology: How do you code histology for "malignant myopericytoma"?

Histology: Are all well differentiated neuroendocrine carcinomas (carcinoid) tumors coded to 8240 or 8246? When do you use code 8246?

Histology/Reportability/Behavior Code--Testis: Is a mature teratoma that is metastatic to lymph nodes reportable? See Description.

Histology/Reportability--Heme and Lymphoid Neoplasms: Is a case that is compatible with low grade myelodysplastic syndrome with multilineage dysplasia (MDS-MLD) reportable, and if so, is the histology plasma cell myeloma or myelodysplastic syndrome (MDS)? See Discussion.

Histology/Reportability--Digestive System: Is “neuroendocrine neoplasm” reportable?  See Discussion.

Histology/Primary site: What is the correct histology code for sarcomatoid carcinoma of the mandible diagnosed in 2007? See Discussion.

Histology/Heme & Lymphoid Neoplasms: Should the histology be coded to chronic myeloid leukemia (CML), BCR-ABL1-positive (9875/3) regardless of the quantitative analysis percentage of BCR-ABL1 that was detected? See Discussion.

Histology/Heme & Lymphoid Neoplasms--Mycosis Fungoides:  What is the histology code for lymphomatoid papulosis that transforms initially to mycosis fungoides (MF)/cutaneous T-cell lymphoma (CTCL) and subsequently to CTCL with large cell transformation, and is it a new primary?  See Discussion.

Histology/Heme & Lymphoid Neoplasms--Leukemia: Is this the correct histology for a case of acute myeloid leukemia (AML) with recurrent genetic abnormalities? If the only information was AML with recurrent genetic abnormalities,"what code would you use: AML, NOS (9861/3) or AML with recurrent genetic abnormalities (9896/3)? See Discussion.