Multiplicity Counter/Type of Multiple Tumors--Breast: How are these data items coded for a single breast primary composed of both in situ and invasive disease when measurements are provided for both the invasive and in insitu components? See Discussion.
Breast cancer, invasive duct carcinoma with DCIS, 1.3 cm, DCIS 3.7 cm. "The in situ carcinoma is very extensive in this lumpectomy. It is present contiguously from sides 1A through 1L sparing only the final 8 mm of medial margin. In situ and invasive carcinoma are prominently present along almost the entire superior margin." Is the mult counter 02 with Type of mult tumor 30, or one tumor?
Because there are individual measurements for each of these tumors, code the multiplicity counter 02 [Two tumors present]. Code Type of Multiple Tumor as 30 [In situ and invasive].
CS Lymph Nodes/CS Mets at Dx--Melanoma: How are these fields coded if a sentinel lymph node biopsy reveals no malignancy but there is an aggregate of melanoma cells in the lumen of a large vein immediately adjacent to the lymph nodes?
This question was answered by the CoC:
Do not count this as regional metastatic disease since there is no evidence it is an established tumor. Stage this as a N0.
MP/H Rules/Histology--Colon: What histology would be coded when the right colon demonstrates a combined adenocarcinoma and high grade small cell neuroendocrine carcinoma [forming the dominant component] arising in a villotubular adenoma and the liver biopsy demonstrates metastatic high grade small cell neuroendocrine carcinoma?
For cases diagnosed 2007 or later, start with rule H1 in the Single Tumor module. Stop at rule H4. Assign code 8263 [adenocarcinoma in tubulovillous adenoma].
Stop at the first rule that applies. Code histology based on a specimen from the primary site whenever available.
Cell indicator--Lymphoma: If the primary site for a lymphoma is stated to be the lymph nodes but there is no biopsy of a lymph node, can the immunophenotype designation for a lymphoma be coded based on a bone marrow or liver biopsy indicating "diffuse large B-cell lymphoma"?
For cases diagnosed prior to 1/1/2010:
The cell indicator or immunophenotype designation for lymphomas may be coded from pathology reports on tissue from bone marrow or liver when there is no tissue from the primary site. Code information on cell type from any available source.
See the Appendix C of the 2007 SEER manual, Coding Guidelines for Lymphomas, pages C-1055 to C-1056 for more information about coding this field for lymphomas.
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.
Multiple Primaries--Brain and CNS: How many primaries should be recorded in a patient with von Hippel Lindau disease that has a hemangioblastoma of the cerebellum in 2003 and a hemangioblastoma of the brainstem in 2007?
A tumor of the cerebellum (C716) and a tumor of the brainstem (C717) are multiple primaries because the topography codes are different at the fourth character of site.
Reportability--Hematopoietic, NOS: The Abstracting and Coding Guide for the Hematopoietic Diseases, page 47, states to determine whether the physician is using the term myelodysplasia to describe bone marrow marrow malfunction or a neoplasic syndrome in order to determine reportability. What do we do when there is no information one way or the other?
For cases diagnosed prior to 1/1/2010:Without further information, the term "myelodysplasia" alone is not reportable. If a more definitive diagnosis is made later, the case may become reportable.
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.
MP/H Rules/Multiple Primaries--Melanoma: Is there a difference between multiple primary rules M6 and M7 because both rules state that tumors occurring more than 60 days apart are to be reported as multiple primaries? See Discussion.
Rule M6 clearly states that an invasive melanoma occurring more than 60 days after an in situ melanoma is a multiple primary. However M7 states that any melanomas diagnosed more than 60 days apart are multiple primaries. Since M7 does not state malignant melanomas diagnosed more than 60 days apart, this implies that any scenario:
in situ following an invasive,
invasive following an in situ,
in situ following an in situ,
or invasive following an invasive
are all multiple primaries if more than 60 days apart. If that is the intent of M7, then M6 is totally unnecessary. If the intent of M7 is only for an invasive following an invasive, then the word malignant needs to be inserted as the first word of rule M7.
For cases diagnosed 2007 or later, M7 is intended to apply to in situ and invasive melanomas. Therefore, M6 and M7 are repetitive.
This will be corrected when revisions are made to the MP/H rules. In the meantime, both M6 and M7 result in multiple primaries so it does not matter which rule is used.
Multiple Primaries/Histology--Lymphoma/Leukemia: How many primaries and what histologies are coded when a path diagnosis for a cervical/neck mass demonstrates classical Hodgkin's lymphoma on a background of chronic lymphocytic leukemia?
For cases diagnosed prior to 1/1/2010:Hodgkin disease and chronic lymphocytic leukemia are separate primaries according to our current instructions. Abstract and code them separately.
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.
Multiplicity Counter: Are in situ tumors diagnosed more than 60 days after invasive tumors of the same site and histology included in the Multiplicity Counter?
If an in situ tumor following an invasive tumor is a single primary according to the multiple primary rules for that particular site, include the in situ and the invasive tumors in the multiplicity counter.
MP/H Rules/Histology--Colon: How is histology coded when the final pathology diagnosis is "adenocarcinoma with extensive mucinous features" and the percent of mucinous features is not stated?
Code 8140 using rule H6. Rule H6 applies because the percent of mucinous is not specified.
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