Histology--Leukemia: How is "T-Cell prolymphocytic leukemia, cerebriform (Sezary cell-like) variant" coded when the pathology report COMMENT states: The cerebriform (Sezary cell-like) variant accounts for about 5% of cases of T-cell prolymphocytic leukemia?
For cases diagnosed prior to 1/1/2010:
9834/3 [Prolymphocytic leukemia, T-cell type]. According to the WHO Classification of Haematopeietic and Lymphoid Tissue Tumours, cerebriform or Sezary cell-like is a variant form of T-cell prolymphocytic leukemia.
For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.
Histology--Leukemia: How is a "plasmacytoid dendritic cell leukemia/lymphoma" coded when it is discovered on a bone marrow biopsy for a patient who presented with multiple enlarged lymph nodes and the discharge diagnosis was Type 2 plasmacytoid dendritic cell leukemia?
For cases diagnosed prior to 1/1/2010:
The best code currently available for this entity is 9727/3 [precursor cell lymphoblastic leukemia].
The WHO classification refers to this as "Blastic NK-cell lymphoma." The 2005 WHO-EORTC classification for cutaneous lymphomas states that blastic NK-cell lymphoma may be derived from a plasmacytoid dendritic cell precursor. They suggest more appropriate terms for this condition may be "CD4+/CD56+ hematodermic neoplasm," and "early plasmacytoid dendritic cell leukemia/lymphoma." According to WHO, this is a rare form of lymphoma.
Willemze, et al. WHO-EORTC classification for cutaneous lymphomas. Blood, 15 May 2005. Volume 105, Number 10.
For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.
Histology--Lymphoma: How is "histiomonocytic lymphoma" coded?
For cases diagnosed prior to 1/1/2010:Assign code 9755 [Histiocytic sarcoma; True histiocytic lymphoma]. "Histiomonocytic" is not standard terminology, according to our expert consultant. However, 9755 is the best code to assign.
For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.
Histology--Lymphoma: How is a "lymphocytic lymphoma of follicular center cell origin" coded?
For cases diagnosed prior to 1/1/2010:Assign code 9690 [Follicular lymphoma, NOS]. According to the WHO Classification of Lymphoid tumors, follicular lymphoma is a neoplasm of follicle center B cells which has at least a partially follicular pattern.
Assign code 9695 for follicular lymphoma grade 1, 9691 for follicular lymphoma grade 2, and 9698 for follicular lymphoma grade 3.
For cases diagnosed 1/1/10 and later, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.
Histology--Lymphoma: Is histology for "large B-cell lymphoma evolving from extranodal marginal zone B-cell lymphoma" coded to 9680/3 [Malignant lymphoma, large B-cell, diffuse, NOS] or 9699/3 [Marginal zone B-cell lymphoma]?
For cases diagnosed prior to 1/1/2010:
Code the histology as 9699 [marginal zone B-cell lymphoma]. Code the histology from the original diagnosis.
For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.
Histology--Melanoma: How is a "malignant melanoma arising in a melanocytic nevus" coded?
The histology code is 8720/3 [malignant melanoma, NOS].
There is no specific code for melanoma arising in melanocytic nevus. According to our pathologist consultant, this is likely because nevi are so common, melanoma arising in association with them is common and appears to have no bearing on prognosis or treatment. Most pathologists do not include the nevus in the diagnosis of melanoma, even when they see it.
Code melanomas arising in melanocytic nevi to the appropriate melanoma code, probably 8720, 8721, or 8743 in most cases.
Histology--Ovary: How is histology coded for an ovarian mucinous neoplasm of low malignant potential (borderline mucinous cystadenoma) that shows extensive intraepithelial carcinoma and focal microinvasion? See Discussion.
At surgery a 25 cm left ovarian mass is found adherent to the anterior abdominal wall. The final diagnosis per the pathology report is, "Mucinous neoplasm (26 cm) of low malignant potential (borderline mucinous cystadenoma) with extensive intraepithelial ca and focal microinvasion. Right ovary, fallopian tubes, uterus, omentum, biopsies of diaphragm, 28 para-aortic and pelvic LNS and peritoneal fluid are all negative for malignancy."
Histology code 8470/3 [mucinous cystadenocarcinoma] is the best choice in this case. There is a mucinous cystadenoma [8470/0] with intraepithelial carcinoma and focal microinvasion. 8470/3 comes as close as possible to the description of the tumor.
Histology--Pancreas: How is a "gastrin and somatostatin producing endocrine neoplasm" coded that has lymph node metastasis?
The best code available for this situation is 8153/3 [Gastrinoma, malignant].
Many pancreatic endocrine tumors produce more than one peptide, such as gastrin and somatostatin in this case. ICD-O-3 does not provide a code for pancreatic endocrine tumors which produce more than one peptide. According to the WHO Classification of Tumours of Endocrine Organs, there is a distinct hormonal syndrome associated with gastrin producing tumors, and not with many of the somatostatin producing tumors. Therefore, our pathologist consultant advises us to code to gastrinoma in this case.
Histology--Pancreas: What is the correct code for "non-secretory pancreatic endocrine tumor" with positive lymph nodes on excision indicating a malignant tumor? Pathologist indicated it was not an exocrine tumor.
Code as islet cell carcinoma [8150/3].
There are several cell types in the islets, and each produces a different hormone. The custom has been to name the tumors by their hormone production e.g. insulinoma, glucagonoma, etc. Occasional tumors do not produce any hormone (at least one that can be determined or measured). These tumors are called non-functioning endocrine tumors. Most of the endocrine tumors in the pancreas are islet cell tumors.
Histology--Pancreas: What is the difference between pancreatic endocrine neoplasm (PanNETs) [8240/3] and the new ICD-O-3 terms pancreatic endocrine tumor, benign [8150/0] and pancreatic endocrine tumor, malignant [8150/3]? See Discussion.
SEER Inquiry 20120035 discusses the reportability of pancreatic endocrine neoplasm (PanNETs) tumors.
The difference is that 8150 is for islet cell tumors. The preferred name was changed by WHO/IARC to reflect the current language used by pathologists to describe islet cell tumors [8150].
The 8240 histology code added the neuroendocrine tumor, grade 1, low or well differentiated terms to the carcinoid ICD-O name.
Islet cell tumors are more aggressive than the pancreatic NET tumors. Treatment and prognosis are determined by the histologic type. While the histology code 8150 is not new, the histology name has been updated.
An official website of the United States government
Home