Report | Question ID | Question | Discussion | Answer | Year |
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20190001 | EOD 2018/Summary Stage 2018--Brain and CNS: What are the Extent of Disease (EOD) Primary Tumor, EOD Reg Nodes, and Summary Stage 2018 codes for intradural schwannoma of the lumbar spine (L2-L4)? See Discussion. |
Example: Patient diagnosed following a resection of a cystic mass at L2-4 that proved an intradural tumor excision with final diagnosis of schwannoma, WHO grade 1. Per new Solid Tumor Rules, the primary site in this case should be coded C476 (peripheral nerves of trunk, NOS) and histology is 9560/0 (schwannoma, NOS). However, there are currently no coding options in the Soft Tissue of Trunk and Extremities EOD schema relating to a benign tumor. Likewise there are no coding options in the Soft Tissue and Sarcoma Summary Stage 2018 schema relating to a benign tumor. How should EOD 2018 and Summary Stage 2018 be coded for reportable benign schwannomas of the spinal nerve roots? |
The instruction regarding C476 has been removed from the Solid Tumor rules. Benign and borderline neoplasms coded to C470-C479 are not reportable at this time. Assign C720 for an intradural schwannoma at L2-4. That should allow you to use the correct EOD and Summary Stage 2018 schemas. |
2019 |
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20190058 | Solid Tumor Rules (2018)/Histology--Cervix Uteri: What is the histology code and what H Rule applies for a diagnosis of papillary squamotransitional cell carcinoma of the cervix? See Discussion. |
It appears that the first Other Sites applicable rule is H16 (and Table 2) instructing the use of histology code 8323 (mixed cell adenocarcinoma). However, this really is not an adenocarcinoma tumor but is a mixed squamous and transitional cell carcinoma. The 2018 ICD-O-3 Histology Update Table provides a new term for a but does not indicate whether that new term would also include a papillary squamotransitional cell carcinoma of the cervix. |
Code papillary squamotransitional cell carcinoma (PSCC) as 8120/3 using the 2018 Other Sites Solid Tumor Rules, Rule H11. PSCC is a distinctive subcategory of squamous cell carcinoma of the uterine cervix. WHO Classification of Tumors of Female Reproductive Organs say that squamotransitional cell tumors show papillary architecture with fibrovascular cores lines by multilayered atypical epithelium. |
2019 |
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20190032 | Summary Stage 2018--Lung: Are ground-glass lung nodules coded as distant for Summary Stage? See Discussion. |
Chest x-ray: Multifocal pneumonia in left lung; possibility of masses in left lung not excluded. Chest CT: 4 large ground-glass masses in LUL (largest 46mm); beginning of Tree-In-Bud appearance in LUL; 2 small ground-glass nodules in right lung. Lung LUL biopsy: Adenocarcinoma, Solid Predominant. No further information as patient did not want to discuss treatment options. Per the AJCC book and CAnswer Forum, multifocal classification should be applied equally whether the lesions are in the same lobe OR in different ipsilateral lobes OR contralateral lobes, cT2b(m), cN0, cM0. |
Do not assume that ground glass presentation is consistent with a neoplasm. There are numerous causes of a ground glass lung condition such as sarcoidosis or pulmonary fibrosis. A ground glass lung opacity may also be observed in conditions such as alveolar proteinosis, desquamative pneumonitis, hypersensitive pneumonitis, and drug-induced or radiation-induced lung disease. If an area of ground glass opacity persists in the lung, it is usually classified as an adenocarcinoma, a classification that ranges from premalignant lesions to invasive disease. This is in line with AJCC that states to stage based on the largest tumor determined to be positive for cancer. To Summary Stage the case example provided, ignore the lesions in the contralateral lung (do not assume that they are malignant). There are multiple lesions in the left lung, but once again, do not assume that those not biopsied are malignant. This leaves us with the lesion confirmed to be malignant, making this a Localized (code 1) tumor. |
2019 |
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20190054 | Update to current manual/Solid Tumor Rules (2018)/Histology--Brain and CNS: Table 6 (Non-Malignant CNS Equivalent Terms and Definitions) lists as a subtype/variant of craniopharyngioma 9350/1. This is not a valid histology per the ICD-O-3 or the 2018 ICD-O-3 Update Table. Is this actually supposed to read, ? |
Adamantinomatous craniopharyngioma (9351/1) is a subtype of craniopharygioma. We will correct the Non-Malignant CNS Solid Tumor Rules in the next update. |
2019 | |
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20190097 | Solid Tumor Rules (2018)/Multiple primaries--Lung: How many primaries are there and what M rules apply for multiple lung histologies in the left lower lobe (LLL) and right upper lobe (RUL) of the lungs? See Discussion. |
There is one tumor in the left lung that is acinar adenocarcinoma, 8551/3, and two tumors in the right lung, one of which is 8551/3 and a separate one that is mucinous adenocarcinoma 8253/3. 3/21/18- left robotic video assisted thoracoscopy with left lower lobe lobectomy: 2.5 cm adenocarcinoma, acinar predominant, margins negative 11/3/18- right upper lobe lobectomy: invasive mucinous adenocarcinoma, 1.7 cm, invasive adenocarcinoma, acinar predominant, 0.6 cm, margins negative If you start by comparing the 8551/3 left lung tumor to the 8253/3 right lung tumor, M6 applies and these would be separate primaries (seq 01 and seq 02). How would we handle the third tumor, 8551/3, in the right lung? Seq 01: 3/21/18- left lung primary 8551/3 Seq 02: 11/3/18- right lung primary 8253/3 Is the right lung tumor 8551/3 a third primary, and if so, which M rule applies? I cannot find a rule that seems to fit completely. Rule M6 may apply if you were comparing the right 8551/3 tumor to the seq 02 8253/3 tumor. But how would you know to use the seq 02 histology code 8253/3 or seq 01 histology code 8551/3 for the comparison? I think M9 was designed for situations where you have multiple tumors involving both lungs but they didn't biopsy all of them. Is that correct? If so, then we would be able to bypass M9. Would M11 apply since we already took care of two of the tumors with rule M6? If M11 doesn't apply, it seems like you would get to M14. |
Abstract two primaries applying Rules M6 and M9 s follows. First, assign a histology for each tumor. --LLL adenocarcinoma, acinar predominant 8551/3 --RUL invasive mucinous adenocarcinoma 8253/3 --RUL invasive adenocarcinoma, acinar predominant 8551/3 For the RUL, this is two primaries according to Rule M6, to subtypes in Column 3 of the histology table. For the LLL and RUL, this represents the same primary as these are the same histology according to Rule M9. |
2019 |
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20190108 | Primary site--Breast: how is subsite coded for a breast cancer when it is described as central portion between 1-3:00 or central portion at 12:00? |
See the SEER coding guidelines for breast, https://seer.cancer.gov/manuals/2018/AppendixC/Coding_Guidelines_Breast_2018.pdf Generally, codes C502 - C505 are preferred over C501. C501 would be preferred over C508. Apply these general guidelines when there is no other way to determine the subsite using the available medical documentation. Table 1, Primary Site codes, in the breast solid tumor rules also provide helpful information for coding site. |
2019 | |
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20190047 | Reportability/Liver: If on imaging, there is no statement of the Liver Imaging Reporting and Data System (LI-RADS) score but there is reference that a lesion is in the Organ Procurement and Transplantation Network (OPTN) 5 category, is hepatocellular carcinoma (HCC) reportable based on the OPTN 5 classification? See Discussion. |
SINQ 20160008 discusses the reportabilty and diagnosis date for liver primaries where imaging references the LI-RADS category as LR-5 or LR-5V. The 2018 SEER Coding and Staging Manual, Appendix E Reportable Example #16, demonstrates this concept. According to the LI-RADS categories a value of 5 is "definitely HCC" and is concordant with OPTN 5. Often we see only the OPTN categorization. |
Report HCC based on the OPTN class of 5. OPTN class 5 indicates that a nodule meets radiologic criteria for HCC. Be sure to document in text fields. |
2019 |
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20190018 | Histology--Thyroid: Should any mention of encapsulated be included in the histology coding (8343/3 vs. 8260/3) for papillary thyroid carcinoma cases? See Discussion. |
Example: Left thyroid lobectomy with final diagnosis When the only mention of encapsulation is included in the tumor characteristics of the College of American Pathologists (CAP) summary, not the pathologist's choice of histologic type, what is the preferred histology? |
Assign 8343/3 for encapsulated variant of papillary thyroid carcinoma. If the pathology report is not available, use the histologic type in addition to other information in the CAP Protocol. |
2019 |
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20190088 | Surgery of Primary Site/Surgical Procedure of Other Site--Breast: When bilateral nipple/skin sparing mastectomies are performed for a single primary confined to one breast, we should code 30 for surgery and 0 for Surgery of Other Site or follow the CAnswer Forum and code 1 in Surgery of Other Site? See Discussion. |
Registrars are confused because the STORE manual dropped "involved" from the description of contralateral breast removal in the Appendix B surgical codes. In April, 2019, CAnswer Forum instructed registrars to code both the surgery with uninvolved breast to the proper code, plus code Surgery of Other Site to 1. In October, they stepped back and instructed registrars not to code Surgery of Other Site to 1 if a code for uninvolved breast removal is included in the breast surgery code. However, they insist that if the surgery code is 30, subcutaneous mastectomy, and the uninvolved contralateral breast is also removed, then continue to code Surgery of Other Site to 1. This contradicts the specific instructions for Surgery of Other Sites. |
For single primaries only, code removal of involved contralateral breast under the data item Surgical Procedure/Other Site (NAACCR Item # 1294), this is, code 1, according to the 2018 SEER Manual: Assign code 1 When the involved contralateral breast is removed for a single primary breast cancer This would also apply when Surgery of the Primary Site code is 30 (subcutaneous mastectomy) for breast. If uninvolved, assign code 0 to Surgical Procedure of Other Site SEER registries should follow the instructions according to the SEER Manual. |
2019 |
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20190053 | Solid Tumor Rules (2018)/Histology--Brain and CNS: What is the histology code for a central nervous system (CNS) Ewing sarcoma family tumor with CIC alteration of the right parietal lobe? See Discussion. |
Table 3 (Specific Histologies, NOS, and Subtypes/Variants) lists Ewing sarcoma as a synonym for Peripheral primitive neuroectodermal tumor 9364. Presumably, this is to be used for the reportable malignant peripheral nerve tumors when diagnosed as pPNET or Ewing sarcoma. However, this patient has a type of central (or CNS) primitive neuroectodermal tumor (histology 9473). Table 3 does not list central primitive neuroectodermal tumor (PNET or CPNET) as a valid histology for CNS tumors. While Table 3 does not list all the possible histologies for the CNS, it currently is not clear how one would arrive at the histology code for a CNS Ewing sarcoma family tumor with CIC alteration, as this is recognized as a new entity for primitive neuroectodermal tumors of the CNS (i.e., PNET, histology 9473) per multiple journal articles. Ewing sarcoma family tumors include both peripheral PNET and central PNET tumors, but to code this histology as a peripheral PNET (9364) in this case seems incorrect when the primary tumor is stated to be of central nervous system origin, not peripheral nervous system origin. |
Code as 9364/3. WHO Classification of Tumors of the CNS, 4th edition, refers to Ewing sarcoma/peripheral primitive neuroectodermal tumor as a tumor of neuroectodermal origin involving the CNS either as a primary dural neoplasm or by direct extension from contiguous bone or soft tissues (such as skull, vertebra, or paraspinal soft tissue). |
2019 |