Histology (Pre-2007)--Breast: What code is used to represent the histology "Ductal carcinoma in situ; 6 mm focus of invasion is a pure mucinous carcinoma that appears to have arisen in the background of encysted papillary carcinoma."
Code to mucinous (8480) since that is the only clearly invasive component of this diagnosis.
According to our pathologist consultant, "Encysted papillary carcinoma is the same thing as intracystic papillry carcinoma, which I think of as an intraductal papillary carcinoma which has greatly expanded the duct to form a cyst-like structure. It generally behaves in an in-situ rather than an invasive fashion. The only clearly invasive component is the mucinous carcinoma, which is what I would code."
Histology (Pre-2007)--Melanoma: How is a "plaque-like nodular spitzoid malignant melanoma" coded?
For tumors diagnosed prior to 2007:
Code histology to 8721 [nodular melanoma]. Essentially, "plaque-like nodular spitzoid malignant melanoma" is nodular melanoma. Code 8721 is the most specific ICD-O-3 histology code available for this diagnosis.
For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.
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?
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.
Histology--CLL/SLL: If a tissue diagnosis of "small lymphocytic lymphoma" is made six months after an initial blood diagnosis of "chronic lymphocytic leukemia" should the histology be updated from 9823/3 to 9670/3?
For cases diagnosed prior to 1/1/2010:Do not change the histology to small lymphocytic lymphoma (9670/3). The chronic lymphocytic leukemia has advanced/progressed and disseminated into other tissues from the blood during the last six months. If the patient presents with disease in the blood and/or bone marrow only, code to CLL. If a lymph node or other solid tissue is involved initially, code to SLL. For the case cited, the tissue involvement occurred six months after the initial diagnosis and the histology code is not changed to reflect the progression of disease.
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.
Primary Site/EOD-Size of Primary Tumor--Lung: If the only lung mass described in CXR is a "hilar mass," is the primary site coded to C34.9 [Lung, NOS] or C34.0 [Main Bronchus; incl. Carina]? Also, can the size of the hilar mass be used to code the size of tumor field?
Because the only description available is "hilar mass," code primary site as C34.0.
For cases diagnosed 1998-2003: Use size of mass for EOD-Size of Primary Tumor.
Primary site--Heme & Lymphoid Neoplasms: Does Rule PH27 apply meaning that primary site is coded to C809 or would it be more appropriate to code to C269 GI Tract NOS since all disease involves the GI tract and this is more specific?
Extranodal lymphoma first diagnosed in the stomach (fundus and antrum) which upon further investigation also involved the small bowel (MALT Lymphoma) in the absence of lymph node findings. MD staged this IIE. Initial thought was Gastric, but PET/CT indicated abnormal uptake involving loop of distended small bowel in the pelvis.
Assign C269 for Gastrointestinal tract, NOS. Apply Rule PH24, code to the organ when only an organ is involved. This rule can be used for NOS sites such as GI tract, NOS.
Based on the information provided, this lymphoma is confined to the GI tract -- stomach and small bowel.
MP/H Rules/Histology--Lung: How should Diagnosis Date, Diagnostic Confirmation and Histology be coded for the LEFT lung mass in the following case?
PET shows a 3 cm mass in the left lung and a 2.9 cm mass in the right lung. No reportable terminology in PET. The right mass is biopsied and shows adenocarcinoma. The left mass is not biopsied. Based on rule M6, this should be reported as two primaries. No additional information in medical record. Patient expired.
For cases diagnosed 2007 or later:
For date of diagnosis, use the date of the PET scan for both primaries. For the left tumor, assign diagnostic confirmation code 8 [Clinical diagnosis only] and assign histology code 8000/3 [malignant neoplasm].
The left lung mass is reported as a separate primary because there is one tumor in each lung. According to Rule M6, when there is one tumor in the left lung and one tumor in the right lung, each tumor is a separate primary. Tumor and mass are equivalent terms for purposes of the multiple primary rules.
CS Extension--Lymphoma: In the absence of physician staging, is an "enlarged" spleen seen on CT coded as involvement of the spleen for lymphoma cases?
This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.
Do not code spleen involvement when the only evidence is an enlarged spleen.
When imaging is the only diagnostic tool (no biopsy or splenectomy), spleen involvement is based on the presence of nodules and not on enlargement. Splenic enlargement alone (by physical exam or imaging) is insufficient to support involvement of spleen.
CS Site Specific Factor--Lymphoma: Can the registrar calculate the International Prognostic Index (IPI) score from information found in the H&P or on the back of a TNM form for the SSF 3 field if the physician does not document it in the medical record?
This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.Record the IPI score in SSF3 when the score is documented in the medical record. If the score is not stated, do not calculate it.
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