SEER Inquiry System - Search

Heme and Lymphoid Neoplasms/Multiple Primaries--Myeloproliferative Neoplasms:  Are essential thrombocytosis (ET) in 1998 and primary myelofibrosis in 2022 the same primary or is the 2022 diagnosis a new primary? See Discussion.

Heme & Lymphoid Neoplasms: Is a clinical remission sufficient to change the tumor status to "disease free" for a patient on long-term chemotherapy for a diagnosis of either a chronic hematologic disease, such as CML, or a myeloproliferative disorder, such as essential thrombocythemia? See Discussion.

Heme & Lymphoid Neoplasms/Histology--Myelodysplastic Neoplasm: What is the histology code for myelodysplastic neoplasm with low blasts and SF3B1 mutation with primary site bone marrow (C421) diagnosed in 2023?

Hematologic Transplant and Endocrine Procedures--Breast: Is a bone marrow transplant first course of cancer-directed therapy for breast cancer? If yes, are time guidelines relating to the first "remission" the same as for those used in leukemia primaries?

Grade: If the biopsy site is a higher grade, is the grade of the biopsy used over the grade of the surgical resection? See Discussion.

Grade: Can the FIGO grade be used to code the morphologic grade? See discussion.

Grade/Sarcoma--Breast: Is the correct grade for high grade angiosarcoma of the breast a code 3 or 4? The breast usually uses a three grade system but sarcoma is not a typical histologic type of the breast.

Grade/Neuroblastoma: What grade is to be used when pathology states only differentiating retroperitoneal neuroblastoma?

Grade/Histology--Rectum: How should histology and grade be coded for high grade neuroendocrine tumor (NET) (WHO Grade 3) of the rectum? See Discussion.

Grade/Histology--Digestive System: What is the grade for neuroendocrine tumor (NET) or neuroendocrine carcinoma (NEC) of gastrointestinal morphologies described as: 1) NET G1 (M8240/3) and NET G2 (M8249/3) or 2) neuroendocrine carcinoma, low grade (M8240/3) and neuroendocrine carcinoma, well differentiation (M8240/3) and neuroendocrine carcinoma, moderate differentiation (M8249/3)? The SEER Instructions for Coding Grade for 2014+, Coding for Solid Tumors section, #3 state: Code the grade shown below (6th digit) for specific histologic terms that imply a grade. NET and NEC are not included in the specific terms.