| Report | Question ID | Question | Discussion | Answer | Year |
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20150047 | Reportability--Bladder: Is a positive UroVysion test alone diagnostic of bladder cancer? See discussion. |
The UroVysion website says that standard procedures, e.g., cytology, cystoscopy, take precedence over the UroVysion test. The Quest Diagnostics website says that "A positive result is consistent with a diagnosis of bladder cancer or bladder cancer recurrence, either in the bladder or in another site within the urinary system. A negative result is suggestive of the absence of bladder cancer but does not rule it out." Would we pick up the case if the UroVysion test was positive but the standard procedures were negative or non-diagnostic? |
Do not report the case based on UroVysion test results alone. Report the case if there is a physician statement of malignancy and/or the patient was treated for cancer. |
2015 |
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20150028 | MP/H Rules/Histology--Head & Neck: Please clarify rule H3. The first statement is "Do not code terms that do not appear in the histology description". The second statement is "Do not code...unless the words...appear in the final diagnosis"
One of our pathology labs frequently will state "keratinizing squamous cell" in the microscopic description (histologic description), but only state "squamous cell carcinoma" in the final diagnosis. May we code from the histologic description if it's not in the final diagnosis? |
Follow rule H3 and code squamous cell carcinoma for these cases unless you can obtain confirmation that these cases should be coded keratinizing squamous cell carcinoma from the lab and/or pathologist. Document this confirmation in your policies and procedures.
The MP/H rules were written with input from leading pathologists in each specialty area. Based on their expert opinion, we instruct registrars to code histology based on the information in the final diagnosis. The microscopic description may contain other terms, but the pathologist lists only the pertinent terms in the final diagnosis. |
2015 | |
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20150045 | MP/H/Histology--Thyroid: What is the histology code for primary site of thyroid cancer with the histology of papillary thyroid carcinoma, classical and oncocytic type? |
Code the histology to 8342/3, thyroid oncocytic (oxyphillic) papillary carcinoma. |
2015 | |
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20150009 | Multiple Primaries/Behavior--Lung: When a patient has an invasive lung primary, how do in situ tumors of the lung affect the determination of multiple primaries? See discussion. |
How many primaries should be reported when a 12/19/14 RUL lung wedge resection shows: 2.0 cm invasive adenocarcinoma (8140/3) and an additional RUL wedge resection during the same procedure shows: multifocal adenocarcinoma in situ (bronchioloalveolar carcinoma), non-mucinous type (8252/2) size: 1 mm – 2 mm; followed by a 2/12/15 left upper lobectomy also showing Adenocarcinoma, invasive at several foci, with a prominent bronchioloalveolar (in situ) component….tumor focality: multifocal (10 cm mass, 6 cm mass and numerous smaller foci)? |
Most often when the invasive tumor and the in situ component are in the same lung and are the same histology, rule M12 (example 3) applies and this is a single primary. If the first wedge resection included part of the tumor and the in situ was not separate from the tumor, it is a single primary. We suspect that the margins were positive on the first wedge specimen which prompted the second wedge resection where the in situ was found. In addition, terminology for lung malignancies is undergoing change: what was called BAC (invasive) is now called adenocarcinoma in situ. |
2015 |
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20150067 | MP/H Rules/Histology--Kidney: What is the correct histology for this diagnosis? See discussion. |
Procedure: Nephrectomy
Laterality: Left
Tumor type: SOLID VARIANT RENAL CELL CARCINOMA
Nuclear grade: High grade (3/4)
Histologic grade: Poorly differentiated
Pattern of growth: Solid
Tumor size: 5x4.5x4cm
Local invasion: Present
Renal vein invasion: None
Surgical margins: Negative
Non-neoplastic kidney: Unremarkable
Adrenal gland: Not submitted
Lymph nodes: Not present
Pathologic stage: T1b
There are solid sheets of tumor cells without papillary structure. The tumor stains positive for Pax-2, negative for Ecadherin, P63 and CK7, consistent with renal cell carcinoma, solid variant. |
Assign histology code 8312, renal cell ca, NOS. There is no specific code for the solid variant of renal cell carcinoma. |
2015 |
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20150058 | MP/H Rules/Multiple Primaries: Is this counted as one or two primaries?
Patient is diagnosed with SCC esophageal cancer. Work-up reveals a lung nodule. Lung FNA (cytology) is read by the pathologist as SCC, favor metastatic esophageal SCC. However, the managing physicians are treating the patient as two separate primaries. |
If the patient is being managed and treated as a case of primary lung cancer, report the lung diagnosis as a separate primary. |
2015 | |
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20150033 | MP/H/Histology--Lung: Would you code a lung primary of "non-small cell carcinoma with neuroendocrine differentiation" to non-small cell carcinoma (8046/3) or carcinoma with neuroendocrine differentiation (8574/3)? See discussion. |
The pathology report states "Right mediastinal mass: poorly differentiated non-small cell carcinoma with neuroendocrine differentiation." This is the only histologic confirmation of this lung primary that is collected. |
Code carcinoma with neuroendocrine differentiation (8574/3). MP/H rule H7 applies: code the higher ICD-O-3 code. There is non-small cell lung carcinoma (8046/3) and a carcinoma, NOS with neuroendocrine differentiation present (8574/3). |
2015 |
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20150027 | Date of diagnosis--Diagnostic confirmation: How are the diagnosis date and diagnostic confirmation coded when the pathology (needle biopsy followed by resection) reports GIST, NOS and the physician subsequently states this is a malignant GIST and treats the patient for a malignancy? See Discussion. |
Pathologists rarely diagnose a GIST as a malignant tumor. Per the AJCC, GISTs encompass a continuum in terms of biologic potential, with larger more mitotically active tumors landing on the "histologically sarcomatous" or malignant end of the spectrum. Because the pathologists generally do not categorize these tumors as benign or malignant, the judgement is typically made by the clinician in light of all the clinical and pathologic findings. Unless there are obvious distant metastases, the clinician usually decides whether a GIST is malignant and treats the patient as such.
In the case above, the patient underwent a gastric biopsy on 04/10/2014 that showed GIST. The subsequent resection on 04/12/2014 showed a 4.5 cm GIST, spindle cell type with 6 mitoses/5 square mm. The resection pathology report does not indicate the GIST is malignant, but does identify a large tumor with mitotic activity. After reviewing the evidence in this case, the clinician calls this a malignant GIST on 04/29/2014 and starts the patient on Gleevec.
Although neither the biopsy nor the resection call this a malignant tumor, should the date the GIST was first diagnosed (biopsy on 04/10/2014) be used to code the diagnosis date, since this is the date the tumor (ultimately felt to be malignant) was diagnosed? If the diagnosis date is coded as the date malignant GIST was first mentioned (04/29/2014), this would exclude surgery as treatment for this tumor.
Would this be a histologic diagnosis because the tumor was histologically confirmed to be GIST? Or must this be a clinical diagnosis because the diagnosis of malignancy was only made clinically (by the clinician's review of the clinical and pathologic findings)? |
Code the diagnosis date for this case as 04/10/2014. Code the diagnostic confirmation as histologically confirmed. The clinician is using all of the information available to determine the diagnosis, including the biopsy and resection. |
2015 |
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20150030 | First course treatment--Surgical rocedure of other sites: How is this field coded when the patient undergoes a lung wedge resection for a pulmonary nodule that was never definitively or was ambiguously stated to be a metastasis? See Discussion. |
The patient was diagnosed with a carcinoid tumor of the small intestine. The pre-surgical work-up also identified a lung nodule that showed no octreotide uptake, but was indeterminate on biopsy. The imaging differential diagnosis included carcinoid, hamartoma, or a non-calcified granuloma. The patient underwent a resection of the primary small bowel tumor, and the physician noted the lung nodule was of unclear diagnosis. The physician stated a solitary lung metastasis would be atypical, but that lung metastatic involvement could not be ruled out. The physician recommended resection of the lung nodule to ensure that the patient was disease free. The lung wedge resection proved a pulmonary hamartoma.
The rules for coding Surgical Procedure of Other Site are not entirely clear. The definitions for First Course of Therapy in the SEER Manual do state that treatment includes, "Procedures that destroy or modify primary (primary site) or secondary (metastatic) cancer tissue." This would seem to exclude the lung resection as it did not destroy, modify or remove metastatic cancer tissue. However, the instructions for coding Surgical Procedure of Other Site do not address removal of distant sites that are not incidental. The lung resection was not incidental; the physician recommended it to ensure the lung was not involved, but it also disproved metastatic involvement. Should the Surgical Procedure of Other Site field be coded 0 (none) or 4 (non-primary surgical procedure to distant site) in this case?
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Code 0 for Surgical Procedure of Other Site in this case. The Surgical Procedure of Other Site field is used to capture surgery to destroy or modify cancer tissue that is not captured in other surgery fields. |
2015 |
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20150036 | Reportability/MP/H--Kidney: "Multilocular clear cell renal cell carcinoma." Would this be coded 8310? See discussion. |
Multilocular clear cell renal cell carcinoma is a specifc histologic type listed in the CAP cancer protocol for kidney, but not in the ICD-O-3 and it is not on the list of specific types of renal cell carcinomas in Table 1 of the kidney equivalent terms and definitions in the MP/H manual. There is a malignant multilocular cystic nephroma 8959 in Table 1, but I can't tell if this the same histology as what is stated in this path report. |
Apply Kidney rule H5 and code the clear cell (8310/3) which is the specific type of renal cell. Multilocular is a variant of clear cell which is a variant of renal cell carcinoma. As of yet, no new ICD-O morphology code as been proposed for this specific histology. It will be addressed in the revised rules. |
2015 |
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