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Report Produced: 01/01/2026 06:59 AM

Report Question ID Question Discussion Answer Year
20110057

MP/H Rules/Behavior--Appendix: How do you code mucinous cancers of the appendix? Is a "low grade mucinous appendix tumor/neoplasm" with peritoneal spread reportable? See Discussion.

Low grade mucinous neoplasms can spread to the peritoneal cavity and in that sense are metastatic but histologically have bland/benign features (may be a benign cystadenoma that ruptured and spread by rupturing) are not a carcinoma. Thus, some have termed this group as DPAM (diseminated peritoneal adenomucinous) and not a true carcinoma. Others indicate that if you have metastasis the tumor is a carcinoma.

For cases diagnosed 2007 or later, low-grade mucinous tumors of the appendix are a /1, borderline/uncertain behavior, and not reportable. These tumors do spread to the peritoneal cavity (pseudomyxoma peritonei). This spread, or deposits, or implants are also borderline/uncertain behavior and do not make the appendiceal tumor reportable. By contrast, a high-grade mucinous tumor of the appendix may produce malignant/invasive pseudomyxoma peritonei. When the pseudomyxoma peritonei are diagnosed as invasive or malignant, the mucinous tumor in the appendix is reportable as a /3.

 2011
20110011 Reportability--Heme & Lymphoid Neoplasms: Is a 2010 diagnosis of "thrombocytopenia of unknown etiology" reportable? See Discussion.

No exact match returned after entering the term "thrombocytopenia of unknown etiology" in the Heme DB. However, the program does indicate there are 17 results that could be displayed that show any of the 4 terms entered. Clicking on the search label indicates there are no matches either.

The only result returned after entering "thrombocytopenia" into the search box is "refractory thrombocytopenia."

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

"Thrombocytopenia of unknown etiology" is not reportable. Thrombocytopenia refers to a low platelet count which causes bleeding. Thrombocytopenia can be caused by viral infections, excessive alcohol usage, HIV, and other causes (including chemotherapy). If the diagnosis is not "refractory thrombocytopenia" the case is not reportable. Appendix F lists this term as non-reportable.

If you do not see the term in the Heme DB under either the Name column or the Alternative Names section for the results returned, it is not reportable. The only reportable term that contains the word thrombocytopenia is refractory thrombocytopenia. Therefore, thrombocytopenia of unknown etiology is not 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.

2011
20110020 Heme & Lymphoid Neoplasms: How is cancer status to be coded when a patient diagnosed with MDS, undergoes treatment, but the MDS subsequently transforms to AML? If the bone marrow no longer shows evidence of MDS, the cancer status for the MDS is disease-free. When cancer status is coded as disease-free (NED), it means that currently there is no clinical evidence of this disease (MDS). 2011
20110131 Reportability--Heme & Lymphoid Neoplasms: Does a change in the 2008 diagnosis from refractory anemia with excess blasts (RAEB I) to a subsequent diagnosis of RAEB II in 2011 need to be reported to the state if the Hematopoietic Database indicates these diagnoses represent the same primary?

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

RAEB I and RAEB II [9983/3] have the same histology code per the Heme DB. They are synonyms. Per Rule M2 one abstracts a single primary when there is a single histology. There is no change to report to the state regarding histology.

The I and II designators indicate the number of blasts in the bone marrow. In RAEB, the number of blasts measures the severity of the disease and is also a predictor of the chance of a genetic transformation to AML.

In this case, the patient's disease has progressed to a more severe phase - similar to a solid tumor progressing from Stage II to Stage III.

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.

2011
20110102

Reportability--Heme & Lymphoid Neoplasms: For cases diagnosed 2010 and later, are idiopathic thrombocytopenia and autoimmune thrombocytopenia reportable?

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

Idiopathic and autoimmune types of thrombocytopenia are not reportable. Thrombocytopenia and thrombocythemia are not synonyms. Cytopenia and cythemia have different definitions. See Appendix F: Non-Reportable List for Hematopoietic Diseases.

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.

 2011
20110155 Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient shows evidence of "MDS as well as essential thrombocytosis and JAK2 mutation positive polycythemia vera" 18 years after a diagnosis of "thrombocytosis and probable polycythemia that progressed to probable myelofibrosis"? See Discussion

Per consultation: an 83 year old patient started on hydroxurea 18 years ago following a diagnosis of thrombocytosis and probable polycythemia. It appears the polycythemia progressed to probable myelofibrosis. The possibility of an MDS needs to be considered.

Problem list: Polycythemia with probable progression to myelofibrosis or MDS.

Bone marrow biopsy two weeks later shows some progression of dysmegakaryocytopoiesis. Patient has evidence of MDS, as well as essential thrombocytosis and JAK2 mutation positive polycythemia vera.

On follow-up visit six weeks later: Continue to manage patient with hydroxyurea.

An additional six months later: Diagnosis is polycythemia with thrombocytosis.

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

This case should be accessioned as a single primary. Code the histology to 9920/3 [therapy-related myelodysplastic syndrome].

The reportable diagnoses must first be separated from the non-reportable diagnoses mentioned in the consult. Thrombocytosis (NOS), polycythemia (NOS), and myelofibrosis (NOS) are not reportable terms. To verify this, look up each term in the Heme DB. No database matches list the preferred name or the alternative names as any of these NOS terms.

The reportable diagnoses are all from the post-bone marrow biopsy consult, "evidence of MDS, as well as essential thrombocytosis and JAK2 mutation positive polycythemia vera." The subsequent notes in the consult again only refer to this as non-reportable polycythemia (NOS) or thrombocytosis (NOS). Keep in mind that this patient has been undergoing treatment with chemotherapy (hydroxyurea) for many years for polycythemia (NOS); the patient was diagnosed with polycythemia, "about 18 years ago."

According to the Subject Matter Experts, as MDS progresses, it may manifest as several different subtypes, this is a part of the disease process and abstracting each subtype would result in over-reporting this disease. This patient has a complicated history. The consult information does not adequately document whether this patient's initial diagnosis of "polycythemia" was primary polycythemia (reportable) or a secondary polycythemia (not reportable). If the patient was initially diagnosed with a primary polycythemia 18 years ago the current diagnosis of "JAK2 mutation positive polycythemia vera" would not be a new primary. The manifestation of ET may be due to the progression of MDS. In either case, this patient does have a therapy-related myelodysplastic syndrome which is the same primary as both PV and ET.

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.

2011
20110150 Ambiguous Terminology--Heme & Lymphoid Neoplasms: As ambiguous terminology is not used to code histology for Heme & Lymphoid primaries, how is the histology coded when a patient has a clinical diagnosis of "consistent with a myelodysplastic syndrome"? See Discussion.

The physician states the "patient's clinical picture certainly is most consistent with MDS." Several FISH probes were performed on peripheral blood, specifically looking for the 5q minus syndrome as well as other molecular rearrangements to suggest or confirm MDS. These studies came back as normal. The initial bone marrow also came back negative. The physician then states, "The suspicion was that this represented a myelodysplastic syndrome despite the normal cytogenetics. Additional studies performed on the date of the clinic visit included the FISH for the 5q minus syndrome as well as CD59 to exclude PNH. Both of these were negative. Therefore, at this juncture, the patient has a macrocytic anemia not yet requiring transfusion support with a normal white count and an elevated platelet count and a hypercellular bone marrow. This is certainly consistent with a myelodysplastic syndrome."

Per coding guidelines, ambiguous terminology is not used to code histology, only for reportability. What is the histology code for this case?

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

Code the histology as Myelodysplastic syndrome, unclassifiable [9989/3].

Ambiguous terminology is used to accession cases (determine reportability). While ambiguous terminology is generally not used to code a specific histology, it can be used to code histology if it is the .

The statement that you do not use ambiguous terms to code histology is intended for those NOS histologies with an ambiguous term being used to describe the subtype. For example, if the physician states this is a myelodysplastic syndrome, NOS, refractory thrombocytopenia. The correct histology would be MDS, NOS [9989/3] and not refractory thrombocytopenia [9992/3].

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.

2011
20110144 Reportability--Heme & Lymphoid Neoplasms: Is steroid resistant idiopathic thrombocytic purpura (ITP) the same as refractory thrombocytopenia [9992/3]?

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

Idiopathic thrombocytic purpura (ITP) is not a synonym for refractory thrombocytopenia (RT). ITP is not a reportable disease. See Appendix F.

Under the Alternate Names section in the Heme DB, the only synonym for refractory thrombocytopenia is "RT." ITP is not listed as a synonym for refractory thrombocytopenia.

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.

2011
20110041 Histology--Heme & Lymphoid Neoplasms: How is this field coded when the final diagnosis for excisional biopsy of two cervical lymph nodes shows classical Hodgkin lymphoma, histologic subtype cannot be determined, but the COMMENT section of the report indicates there are features of both lymphocyte rich and nodular sclerosis subtypes?

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

Per Rule PH28, code histology to 9650/3 [Classical Hodgkin lymphoma]. This rule states to code the non-specific (NOS) histology when the diagnosis is one non-specific (NOS) histology and two or more specific histologies.

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. http://seer.cancer.gov/seertools/hemelymph.

2011
20110153 Reportability--Heme & Lymphoid Neoplasms: Is macrocytic anemia reportable?

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

Macrocytic anemia is not reportable. Anemia refers to a condition of having a low count of red blood cells. The term "macrocytic" refers to the enlarged size of the red blood cells. Macrocytic anemia is usually caused by vitamin deficiencies, alcohol use, medications or thyroid disorders.

See Appendix F: Non-Reportable List for Hematopoietic Diseases.

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.

2011