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SEER will answer the question about the number of primaries to accession. Submit questions about stage to the CoC CAnswer Forum.

For cases diagnosed 2007 or later: Accession two primaries: a mixed adenocarcinoma, acinar and papillary types [8255/3] and a bronchioloalveolar carcinoma, non-mucinous [8252/3].

The steps used to arrive at this decision are:

Determine the histology code for each tumor prior to applying the Multiple Primary Rules to determine the number of primaries to accession. There are two non-small cell carcinomas, NOS; the histology code for these two tumors will be 8046/3. There is a single adenocarcinoma with acinar and papillary subtypes tumor, the histology for this tumor will be 8255. There is a single bronchioloalveolar carcinoma, non-mucinous subtype tumor; the histology for this tumor will be 8252/3.

Open the Multiple Primary and Histology Coding Rules manual. Choose one of the three formats (i.e., flowchart, matrix or text) under the Lung Multiple Primary rules to determine the number of primaries.

Start at the MULTIPLE TUMORS module, Rule M3, because this patient has multiple tumors. The rules are intended to be reviewed in consecutive order within the module (from Rule M3 to Rule M12 in this case). Stop at the first rule that applies to the case you are processing. This patient's adenocarcinoma with acinar and papillary subtypes [8255/3] and non-mucinous bronchioloalveolar carcinoma [8252/3] are multiple primaries.

Perform a second pass through the Multiple Primary rules to determine whether the two non-small cell carcinomas [8046/3] are multiple primaries or manifestations of the same primaries identified in Step 3.

Start at Rule M3 again because this patient has multiple tumors. Again, these rules are intended to be reviewed in consecutive order within the module (from Rule M3 to Rule M12 in this case). Stop at the first rule that applies to the case you are processing. This patient's non-small cell carcinomas, NOS [8046/3] are a single primary when compared to the adenocarcinoma with acinar and papillary subtypes [8255/3] and non-mucinous bronchioloalveolar carcinoma [8252/3]. Both of these histologies are more specific types of non-small cell carcinoma per the Lung Histology Groups and Specific Types Chart (Chart 1).

You can also apply Rule M10 for both non-small cell carcinoma, NOS [8046/3] compared to adenocarcinoma with acinar and papillary subtypes [8255/3] and non-small cell carcinoma, NOS [8046/3] compared to non-mucinous bronchioloalveolar carcinoma [8252/3].

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.

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.

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.

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

Langerhans cell histiocytosis (LCH) [9751/3] is reportable to all agencies starting for cases diagnosed 1/1/2010 and later. See Appendix D: New Histology Terms and Codes.

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.

Report malignant myopericytoma as 8824/3 for cases diagnosed 2021 and later.

Multiplicity Counter field was initially coded 02. Change the code to 03 because the subsequent, additional tumor was determined to be the same primary. Update the Multiplicity Counter field only once. If additional tumors are determined to be the same primary for this case, it is not necessary to update this field again.

Date of Multiple Tumors field was initially coded November 2007. Multiple tumors were present at the time of the initial diagnosis. Do not change the date of this field when additional tumors are subsequently diagnosed. This data item reflects the earliest date that multiple tumors were present. See example 2 under #3 on page 81 of the 2010 SEER manual.

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.

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.