MP/H Rules--Histology: How is histology coded when a metastatic site is biopsy positive for adenocarcinoma, but the physician clinically states this is cholangiocarcinoma? See discussion.
The patient underwent a PTA biopsy of a lytic mass showing metastatic adenocarcinoma. Imaging revealed a large hepatic mass consistent with cholangiocarcinoma. The physician's impression on a physical exam note was the PTA biopsy was most consistent with intrahepatic cholangiocarcinoma. However, the PTA pathology report was reviewed at this facility and the final diagnosis was not stated to be cholangiocarcinoma, only adenocarcinoma, NOS.
The priority order for coding histology rules in the MP/H Manual indicates pathology has priority over documentation in the medical record. Following the rules in the MP/H Manual, the histology would be coded as 8140 [Adenocarcinoma, NOS]. While this may be technically correct, it seems that intrahepatic cholangiocarcinoma is often diagnosed as adenocarcinoma on biopsy, but further stated to be cholangiocarcinoma by the physician once other primary sites have been excluded. By applying the rules in the MP/H Manual, cases that seem better characterized as cholangiocarcinomas are being collected as adenocarcinoma, NOS. Should the histology be adenocarcinoma [8140/3] or cholangiocarcinoma [8160/3] for these cases?
When the physician has reviewed all of the pertinent information, and the physician's opinion is documented stating that the histology is cholangiocarcinoma, code cholangiocarcinoma.
A pathology report from a primary site has the highest priority for coding histology; however, there is no such pathology report in this case. We will review the histology coding instructions and add clarification in the next version.
Reportability--Testis: Is a mature teratoma of the testis reportable? See discussion.
Mature teratoma is listed as a benign neoplasm (9080/0) in the ICD-O-3. SINQ 20120085 references a NAACCR Webinar that indicated pure mature teratomas of the testis in adults are reportable. We are not aware of any further documentation of this change in reportability. When did mature teratomas of the testis for adults become reportable? What is the defined age range for "adult"? The original SINQ question above lists the 2012 SEER Manual as a Reference, however, no clarification or mention of this change in reportability was found in that manual.
For testis, mature teratoma in an adult (post-puberty) is reportable because it is malignant (9080/3); however, mature teratoma in a child is benign (9080/0). The 2011 NAACCR webinar introduced this concept and it was documented in the 2012 SINQ question. You may use 2011 or 2012 as the date of this change. The next edition of the SEER manual will include reportability examples.
Summary Stage 2000--Melanoma: How should Summary Stage 2000 be coded for 2014+ diagnosed melanoma cases with satellite nodules or in transit metastases? See discussion.
The SEER SS (SSS) 2000 Manual indicates satellite nodules (NOS or less than/equal to 2cm from primary tumor) are regional by direct extension (code 2) and in-transit metastasis (satellite nodules greater than 2 cm from primary tumor) are coded as involvement of regional lymph nodes (code 3). However, CSv0205 indicates mapping for satellite nodules/in transit metastasis (coded in CS LN) was changed to Regional, NOS (code 5). There are no definitions listed for code 5 in the SSS 2000 Manual.
Our staff independently code SSS 2000. Should we code the existence of satellite nodules and in transit metastases according to the current definitions in the SSS 2000 Manual or using the mapping information from CSv0205?
Code the existence of satellite nodules and in transit metastases according to the current definitions in the SSS 2000 Manual. Do not use the mapping information from CS to code SSS.
First course treatment: When a patient has a Haplo bone marrow transplant, is this coded as an allogenic bone marrow transplant since part of his marrow was used in addition to a donor?
Use code 12 in the Hematologic Transplant & Endocrine Procedures data field. Per the NCI, this procedure is an allogeneic transplant.
Rather than wiping out a patient’s immune system before transplanting donor bone marrow, doctors administer just enough chemotherapy to suppress the immune system, which keeps patients from rejecting the donated marrow without harming their organs. The procedure requires just a half-match, meaning that a patient’s parents or children could be suitable donors. AKA: Half-match transplants.
MP/H/Histology--Kidney, renal pelvis: What is the histology code for renal cell carcinoma translocation type?
Code renal cell carcinoma translocation type as renal cell carcinoma, NOS, 8312. While WHO recognizes renal cell carcinomas with associated translocations, there is no specific ICD-O-3 code for this variant of renal cell carcinoma.
Surgery of Primary Site--Corpus uteri: What is the correct surgery code to assign for dilation and curettage (D&C) for an in-situ endometrium (C541) primary? The code to use for the cervix uteri (C530-C539) is specified, but not for the corpus uteri (C540-C549).
Assign code 20 for endometrial D&C for in situ cancer of endometrium.
MP/H Rules/Histology--Kidney, renal pelvis: How would you code this histology: Renal cell carcinoma, clear and eosinophilic cell type?
Kidney rule H5 applies, code the more specific histology which is clear cell renal cell carcinoma (8310/3). Per the WHO Tumors of the Urinary System, clear cell renal cell carcinoma contains both clear and eosinophilic cytoplasm. Eosinophilic is not a type or variant of renal cell carcinoma.
Reportability--Pancreas: Is this reportable? Is this benign? If reportable, what histology code and behavior code should be used? A final pathology diagnosis reads: "Cystic pancreatic endocrine neoplasm (CPEN)".
"Cystic pancreatic endocrine neoplasm (CPEN)" is reportable. Assign 8150/3 based on the information provided. We consulted our expert pathologist and he states "Since metastases have been reported in a few, and all the rest of the pancreatic endocrine tumors are now designated malignant, …we are safe considering them /3 until proven otherwise. Since most of them are non-functioning, [assign code] 8150/3 unless specified as to G1 (8240/3) or G2 (8249/3)."
Reportability--Lung: One of our facilities has a case they are not really sure how to report.
This patient came in for a double lung transplant due to COPD which occurred on 1/27/14. At time of transplant, the team found out the donor hospital had identified a small nodule in the right lower lobe donor lung, which they biopsied and deemed negative. However, the slides were reviewed and felt to represent adenocarcinoma. The team performed a right lower lobe lobectomy of the donor lung before transplanting into the patient.
So, we are not really sure how to handle this case. The adenocarcinoma actually belongs to the donor patient from another hospital, however, they actually didn’t identify it at that facility as their pathology was negative for a malignancy.
This very interesting case is not reportable to either facility. Since the right lower lobe nodule was resected prior to transplantation, the case does not belong to your patient. Ideally, the cancer should be assigned to the donor; however, donor information is confidential.
Reportability--Head & Neck: Would this be reportable and if so what histology would be coded? Soft tissue mass left cheek excision reveals Carcinoma Ex Pleomorphic Adenoma Non-Invasive with focal vascular invasion. Margins clear.
Carcinoma ex pleomorphic adenoma (Ca-ex-PA) is reportable. Assign 8941/3. The WHO classification of head and neck tumors defines Ca-ex-PA as an epithelial malignancy arising in a benign pleomorphic adenoma. Most of these originate in the parotid gland but can also arise in other salivary glands.