Histology (Pre-2007): What code is used to represent the histology "adenocarcinoma with a mucinous focus"? See discussion.
Could 8480/3 [mucinous adenocarcinoma] be used to code histology?
For tumors diagnosed prior to 2007:
Code the Histology field to 8140/3 [adenocarcinoma, NOS]. "Focus" does not indicate the majority of tumor per rule C2 on page 2 of the Coding Complex Morph Dx's. The tumor must be at least 50% mucinous, mucin producing, or signet ring to be coded to the specific histology.
We code to the more specific term if there are no qualifying or modifying terms such as: focally, focus, predominantly. If any qualifying words are used, the C1 rule applies, which is to code to the majority of tumor.
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.
Multiple Primaries (Pre-2007)--Skin: If a patient presents with two separate lesions on the left cheek (i.e., left lateral cheek and left upper cheek) that both are histologically confirmed to be superficial spreading melanoma on the same day, is this coded as one or two primaries?
For tumors diagnosed prior to 2007:
Code as one primary.
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.
Spanish Surname or Origin: If Asians, Blacks and Whites with non-Spanish surnames are born in a Spanish country, is this field coded to Spanish or non-Spanish? See discussion.
For example, how do we code Miyako Mitsubishi with race listed as Japanese who was born in Peru or Sylvia Shapiro with race listed as White who was born in Argentina?
For both cases, code the Spanish Surname or Origin field to 0 [Non-Spanish/Non-Hispanic]. Persons with non-Spanish surnames would not be coded as being Spanish solely because they are born in a Spanish country. Do not code Spanish ethnicity based only on birthplace. Place of birth is a separate data item and it can be used in data analysis to identify this particular group of people.
EOD-Size of Primary Tumor: How do you code tumor size for lesions described as "at least 2 cm"? See discussion.
The expression "at least 2 cm" seems to be different from "greater than 2 cm." Stating "at least" seems to indicate that if the tumor is larger than 2 cm, it is difficult to ascertain the exact tumor size. Should we accept 2 cm as the best info we have, or default to 999 because of the lack of specificity?
For cases diagnosed between 1998-2003:
Code the EOD-Size of Primary Tumor field to 020 [2 cm], using the rule "code what you know."
Grade, Differentiation--All Sites: If the grade given for the primary site is from a provisional diagnosis and the grade given for a metastatic site is from a final diagnosis, should we follow the SEER rule that says to code the grade as stated in the final diagnosis (e.g., Provisional diagnosis: High grade papillary serous carcinoma of ovary. Final dx: poorly differentiated adenocarcinoma in a caval lymph node)?
Code the Grade, Differentiation field to 4 [High grade] from the examination of the ovary (primary site). Do not code grade from a metastatic site.
Grade, Differentiation--All Sites: Should we take the grade from a TNM staging form over a grade stated in a pathology report when the grade mentioned on the TNM staging form is a higher grade (e.g., Pathology report diagnosis is moderately differentiated adenocarcinoma, Gleason's 3+3=6, but the physician checked "poorly differentiated" on the TNM form)?
Code the Grade, Differentiation field to 2 [moderatley differentiated]. Code from the pathology report over the TNM staging form. If you do not have access to the path report, use the grade from the TNM form.
Grade, Differentiation--Bladder: Some pathologists use a two component grade system for bladder carcinomas - either low grade or high grade. Should we continue to code these per SEER rules as grades 2 [low grade] and 4 [high grade]? See discussion.
The AFIP website states that this low grade classification corresponds to grade 1/3, while the high grade corresponds to both grade 2/3 and grade 3/3. Using the 3-grade conversion, this would also classify the low grade as grade 2, but would leave the high grade as a toss-up between grade 3 and grade 4.
Continue to code Grade, Differentiation as specified in the SEER Program Code Manual: "Low grade" is coded to 2 and "high grade" is coded to 4.
Reportability/Diagnostic Confirmation--Melanoma: Would a shave biopsy diagnosis of "highly suggestive of early melanoma", followed by a re-excision diagnosis of "no residual disease", be SEER reportable if the clinician referred to the case clinically as a melanoma? If so, what would the Diagnostic Confirmation be? See discussion.
Pathology report from a shave biopsy states: "...markedly atypical junctional melanocytic proliferation. Changes highly suggestive of early melanoma arising adjacent to superficial congenital nevus." The re-excision pathology report states "biopsy proven melanoma" in the "Clinical History" section of the report (which is a reference to the original shave biopsy). The re-excision final pathology diagnosis states "no evidence of melanoma." The physician states that he thinks this is a melanoma. Should it be reported? Should Diagnostic Confirmation be coded to 1 or 8?
The case is reportable because the physician documented a clinical diagnosis of malignant melanoma. Code the Diagnostic Confirmation field to 8 [Clinical diagnosis only (other than 5, 6 or 7)].
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.
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