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Report Produced: 02/15/2026 18:01 PM

Report Question ID Question Discussion Answer Year
20100018 Reportability/Heme & Lymphoid Neoplasms--Hematopoietic, NOS: Is light chain disease reportable if it is treated with chemotherapy agents? See Discussion.

A patient was diagnosed in 2010 with light chain disease based on SPEP and urine testing. Bone marrow aspiration and biopsy were done. Flow cytometry, cytogenetic studies and FISH for plasma cell disorders are all normal. Medical oncologist states diagnosis is light chain disease. Patient was started on Revlimid, dexamethasone and Velcade.

In reviewing the case reportability instructions, this seems to fall under Instruction 1, note 1. Immunoglobulin deposition disease, preferred term for light chain disease, is coded as 9769/1. This is normally a non-reportable diagnosis, but the patient was given cancer-directed treatment. Would this case be accessioned using the above morphology code and primary site of bone marrow [C42.1]?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

This case is not reportable. The histology is 9769/1 [light chain disease] in the Heme DB.

Light chains are produced in neoplastic plasma cells (multiple myeloma) and are called Bence-Jones proteins. The physician did the cytogenetic studies and FISH to rule out plasma cell disease. 50-60% of people with Light-chain deposition disease (LCDD) have an associated lymphoproliferative disorder, most commonly multiple myeloma. The remaining patients develop LCDD in the setting of progression of monoclonal gammopathy of unknown significance (MGUS) with no evidence of neoplastic plasma cell proliferation. This patient falls in this category, MGUS, which is not reportable.

2010
20100064

Histology--Heme & Lymphoid Neoplasms: How is histology to be coded for acute lymphoblastic leukemia (ALL) and/or precursor B acute lymphoblastic leukemia (Pre-B ALL) for cases diagnosed 2010 and later? The Heme Database has two histology codes for this disease, both 9811/3 and 9836/3, which is the correct histology code?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code histology to 9811/3 [B lymphoblastic leukemia/lymphoma, NOS].

See the Abstractor Notes section in the Heme DB, when determining how to code histology for a case. It indicates the code 9811/3 is effective for cases diagnosed 2010 and forward. The 9836/3 is listed as obsolete and refers you to code 9811/3. Make sure to check for a specific subtype of B lymphoblastic leukemia/lymphoma [9812/3 - 9818/3] before assigning the NOS code [9811/3].

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100063 Primary Site-Lung: Can you use a lung subsite code for a histologically confirmed lung primary when a CT scan indicates a sized mass located in one lobe of the lung as well as "too numerous to count nodules" through one or both lungs? See Discussion. For example, chest CT shows "1.6 cm RUL suspicious mass and too numerous to count nodules throughout both lungs." Core biopsy of mass in the RUL compatible with adenocarcinoma. For lung primaries with one large mass and numerous nodules, code the primary site to the subsite where the large mass is located. For your example, code the primary site to C341 [upper lobe of lung]. Note: This answer does NOT mean that the other nodules are primary or metastatic cancer. 2010
20100011

Reportability: Should a benign gangliocytic paraganglioma [8683/0] be a reportable (malignant) tumor based on the presence of lymph node metastases? See Discussion.

"Resection, periampullary duodenum: Gangliocytic paraganglioma, with metastasis to one large periduodunal lymph node. Six other small lymph nodes negative. COMMENT: The primary tumor in the duodenum is made up mainly endocrine cell component. This component appears to have metastasized to a periduodenal lymph node."

This neoplasm is reportable because it is malignant as proven by the lymph node metastases. Code the behavior as malignant (/3) when there are lymph node metastases.

 2010
20100080

Reportability--Heme & Lymphoid Neoplasms: Is the term "thrombocytopenia" equivalent to the term "refractory thrombocytopenia" and should be a subsequent primary if it follows a treated diagnosis of pancreatic cancer?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Thrombocytopenia NOS is not a reportable diagnosis per Appendix F. Thrombocytopenia and Refractory Thrombocytopenia are not the same disease.

Thrombocytopenia is caused by a decreased number of platelets in the blood. Non-malignant causes include disseminated intravascular coagulation (DIC), drug-induced non-immune thrombocytopenia, drug-induced immune thrombocytopenia, hypersplenism, immune thrombocytopenic purpura (ITP), thrombotic thrombocytopenic purpura, and infections of the bone marrow.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

 2010
20100113 Reportability--Heme & Lymphoid Neoplasms: Is hemophagocytic lymphohistiocytosis reportable?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

No. This is not a reportable hematologic condition. When you do not find a hematologic or lymphoid condition listed in the Heme DB, it is not reportable. Hemophagocytic lymphohistiocytosis is an uncommon hematologic disorder. The patient usually presents with fever, splenomegaly, and jaundice. Laboratory findings are lymphocytosis and histiocytosis. Pathology findings are hemophagocytosis.

Appendix F lists this term as non-reportable.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

2010
20100061 MP/H Rules/Histology: The 2010 SEER Manual has omitted some useful information in the Histologic Type ICD-O-3 section, specifically the statement of "Do not revise or update the histology code based on subsequent recurrence(s)". Will this statement be added to the revisions of the MPH rules? See Discussion. Example: A 2005 diagnosis of left breast lobular carcinoma [8520/3], followed by a 2009 diagnosis of left breast ductal carcinoma [8500/3]. Rule M10 states this is a single primary, but there is no information in the Histology rules (Multiple Tumors Abstracted as a Single Primary) that the original histology should be retained, thus a person could potentially use these rules to change the original histology to 8522/3 [duct and lobular carcinoma] per rule H28. We will reinstate the instruction not to change the histology code based on recurrence in future versions of the histology coding instructions. However, this instruction may not be applicable to all anatomic sites. It will be reinstated on a site-by-site basis. You may also refer to the instructions on Page 7 of the 2010 SEER Manual under the heading "Changing Information on the Abstract." 2010
20100094

Primary site--Heme & Lymphoid Neoplasms: Is a peripheral blood equivalent to bone marrow biopsy for the purposes of Rule PH26 and code the primary site to C421 [Bone marrow] for a marginal zone lymphoma found in peripheral blood when there was no additional workup (e.g., scans, etc.) for this case?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the primary site to C421 [bone marrow]. Our hematopoietic specialty physicians state that involvement of peripheral blood is equivalent to bone marrow involvement because the marrow produces blood. In the absence of any other involvement, per Module 7 (Coding primary sites for lymphomas) Rule PH26, it states to code the primary site to bone marrow when the only involvement is bone marrow.

SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.

 2010
20100026 Multiplicity Counter--Kidney, Renal Pelvis: How many times is this field updated after an invasive primary is originally diagnosed? Should subsequently diagnosed in situ tumors to be included in this field? See Discussion. How should the Multiplicity Counter be coded when a patient has a renal pelvis primary [C659] diagnosed 1/23/08. The patient had one tumor, invasive grade 3 of 3 papillary urothelial carcinoma arising in the depth of a calyx in mid portion of kidney. In 6/1/09, a TURBT showed three separate high grade urothelial carcinoma in-situ lesions on the right side of the bladder, the largest tumor being 7mm. In 2/8/10, another TURBT showed one lesion on the left side of bladder, high grade urothelial carcinoma in-situ, tumor was 4mm. These are all a single primary per rule M8.

Code multiplicity counter 04. Count both invasive and in situ tumors.

Multiplicity counter would have been coded 01 in 2008. Add the three in situ tumors diagnosed in 2009 to the first tumor and update multiplicity counter to 04. Make only one update to multiplicity counter. Because the multiplicity counter was updated once, the fifth tumor diagnosed in 2010 does not need to be added.

2010
20100098 Primary site/Histology--Heme & Lymphoid Neoplasms: How are these fields coded for a 2008 diagnosis of small B cell leukemia, most consistent with mantle cell leukemia that only involved the bone marrow? See Discussion. A bone marrow biopsy was done on 6/18/2008 and showed only small B cell leukemia, most consistent with mantle cell leukemia. ICD-O-3 does not list a histology code for small B cell leukemia or mantle cell leukemia.

Code the histology to 9673/3 [mantle cell lymphoma] and the primary site to C421 [bone marrow].

Mantle cell lymphoma can present in a leukemic phase. The only code available is for mantle cell lymphoma and the only primary site that could be coded would be bone marrow.

2010