MP/H Rules--Corpus uteri: How is histology coded for an endometrial tumor described as an "endometrioid adenocarcinoma with prominent squamous metaplasia"?
For cases diagnosed 2007 or later:
Endometrioid adenocarcinoma with squamous metaplasia is coded 8570 [Adenocarcinoma with squamous metaplasia]. This falls under the Histology Coding Rules for Other Sites, rule H17. The code for Endometroid adenocarcinoma is 8380. The code for Adenocarcinoma with squamous metaplasia is 8570. The histology with the numerically higher ICD-O-3 code is Adenocarcinoma with squamous metaplasia -- 8570.
MP/H Rules/Histology--Thyroid: How many primaries are to be reported and what histology is to be coded for an anaplastic/undifferentiated thyroid carcinoma with sarcomatoid transformation likely arising in association with a papillary thyroid carcinoma? Thyroid contains one tumor: 12.5 cm in greatest dimension...almost completely replaces entire thryroid gland.
For cases diagnosed 2007 or later:
This is a single primary using rule M2; a single tumor is always a single primary.
The histology code for this case is 8260/3 [Papillary carcinoma of thyroid]. Begin with Histology Coding rule H8. Stop at rule H17 and code the histology with the numerically higher ICD-O-3 code.
Reportability: If a dermatopathologist refers to an atypical fibroxanthoma as a malignant process, but the ICD-O-3 indicates it is a borderline process, is this a reportable case? See Discussion.
"Final Diagnosis: Surface of ulcerated histologically malignant spindle cell neoplasm, consistent with atypical fibroxanthoma. Note: An exhaustive immunohistochemical work-up shows no melanocytic, epithelial or vascular differentiation. Atypical fibroxanthoma is a superficial form of a malignant fibrous histiocytoma."
The pathologist has the final say on behavior. In this case, the pathologist states that this tumor is malignant in the final diagnosis. Therefore, this case is reportable.
CS Lymph Nodes/CS Site Specific Factor--Head and Neck: How should these fields be coded when the information is from an out of state data exchange and the record provides no supporting text, all the required fields are not coded and the codes that are provided are in conflict? See Discussion.
A parotid case with CS LN coded to 10 [single positive ipsilateral regional node]; Regional LNs Positive coded to 68 and Regional LNs Examined coded to 74. No SSFs were coded. Based on the number of nodes coded as positive, the CS LN code was incorrect. Because the only information available to the central registry was that multiple regional LNs NOS were positive, we coded CS LN to 80 [lymph nodes NOS] and coded all SSFs to 999. Upon running the SEER edits, this case popped up on edits yielding a CS Site-Specific Factor codes, CS Lymph Nodes and Head/Neck Schemas conflict. Provide some guidance as how to properly code CS LNs & SSFs 1-6 for this case given the very limited information provided to us?
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.This is an unusual situation with conflicting information. If possible, request the pathology report and/or audit the case.
If you cannot obtain any further information or clarification, there are two choices:
Primary Site/Surgery of Other Site--Leukemia: If hairy cell leukemia is diagnosed at splenectomy, and 1 month later a bone marrow confirms the same diagnosis, is the primary site coded to spleen or bone marrow? If the site is bone marrow, is the splenectomy coded to 2 (regional) or 4 (distant) in the surgery field?
For cases diagnosed prior to 1/1/2010:Primary site:
Code the primary site to C421 [bone marrow] per primary site coding instructions for leukemia in the 2007 SEER manual, page 70.
Surgery of other site:
Since all surgical procedures for hematopoietic diseases are coded in the data item Surgery of Other Site, assign code 1 [Nonprimary surgical procedure performed].
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--Breast: What histology code is used for lobular with focal ductal features? Do we ignore the focal features and code as lobular or do we use the combination code for duct and lobular?
For cases diagnosed 2007 or later, use rule H14 and assign code 8520 [lobular]. Ignore histologies described as "focal," "foci," or "focus." This instruction will be added to the next version of the MP/H manual.
MP/H Rules--Lung: In reference to lung, SINQ 20071028 states "'nodule' is not an equivalent term for tumor, mass, lesion, or neoplasm." However, slide 5 for the MPH lung section of "Beyond the Basics" states "we use the words 'mass, nodule and lesion' interchangeably." Which is it?
For cases diagnosed 2007 or later:
For the purpose of applying the Lung MP/H rules, the word "Nodule" can be used interchageably with "Tumor," "Mass," "Lesion" and "Neoplasm." HOWEVER, this does NOT apply to casefinding or staging.
This revision will be added to the next version of the MP/H rules. Sinq question 20071028 will be revised.
Scope Regional LN Surgery--Melanoma: How is this field coded when there is no primary skin lesion and the only disease present is one axillary lymph node that reveals melanoma? See Discussion.
According to SINQ 20061045, the CS Lymph Node field is coded to 80.
Code scope of regional LN surgery 4 [1 to 3 regional lymph nodes removed] for this case. One lymph node was removed. For this case, the axillary lymph node is coded as regional for the CS Lymph Node field. Therefore, include this lymph node is also coded in the Scope of Regional LN Surgery field.
Race, ethnicity/Spanish surname or origin: SEER Program Manual instructions state, "Portugese, Brazilians and Filipinos are not Spanish; Code non-Spanish (code 0)." How is that determined? Is that based SOLELY on birthplace? See Discussion.
The following are scenarios for which we would like clarification on how to code Spanish Ethnicity.
Birthplace Portugal; text states Spanish, south American or European Spanish
Birthplace Brazil, last name is on Spanish surname list; pt is married female. Text states "Hispanic female, NOS"
Birthplace Brazil or Portugal, text states patient is "Mexican", last name is on Spanish surname list
Information about Spanish origin is available for both of these cases; code the race as Hispanic. Use the SEER manual instruction when the only information available is that the patient was born in Portugal, Brazil or the Philippines. In the absence of additional information, do not assume Hispanic. However, if additional information is available stating that the patient is Hispanic, code as Hispanic.
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