SEER Inquiry System - Search

Code the residence where the student is living for exchange students temporarily living in the U.S.  Code the temporary address if known or the Post Office Box if unknown.  We will add this scenario to the next release of the SEER manual.

AIN II is reportable for 2021. Squamous intraepithelial neoplasia, grade II is listed in ICD-O-3.2 as 8077/2 making it reportable for cases diagnosed in 2021. AIN is a type of squamous intraepithelial neoplasia.

The wording in Appendix E of the 2021 SEER manual (must be unequivocally stated as grade III to be reportable) was left over from earlier versions and is not correct for 2021 diagnoses. Follow the guidance in SINQ 20210048.

Assign code 8000/0.  This is an emerging histology and not yet recognized by the World Health Organization. Document the details in text fields. It might also be useful to document this SINQ question in text.

While oat cell carcinoma is an outdated term, if that is all the pathology report states, code histology as 8042/3. 

Yes, Rule H4 applies: the diagnosis was a single histology. H4 instructs you to refer to the solid tumor H table, and if the term is not found there, check ICD-O and ICD-O updates. All possible histologic types that could occur in the lung may not be included in the table.

We consulted an expert genitourinary pathologist who advises that micropapillary serous borderline tumor of the testis is reportable. He states "it is the same neoplasm as in the ovary. It arises from tissue (tunica vaginalis) surrounding the testis so is a paratesticular neoplasm." 

 Please note: not all borderline tumors are reportable and this diagnosis is an exception because it is assigned /2 in ICD-O-3.2. It is reportable for cases diagnosed Jan 1, 2021 and later.

Beginning with cases diagnosed 1/1/2022, the term "configuration" can be used to code histology for urinary sites only. At the request of the AJCC urinary experts, the instructions were changed to allow configuration to be used to code histology.

Assign 8000/1. Neuroepithelial tumor with PATZ1-EWSR1 fusion, not elsewhere classified, is not recognized as a distinct entity at this time. It is not listed in ICD-O-3.2 or in the 5th edition of the WHO CNS classification.

Code follicular carcinoma, minimally invasive, oncocytic variant of the thyroid to follicular carcinoma, oncocytic variant (8290/3).  The term "variant" is commonly used in thyroid histologies and if appropriate, used to determine histology code. The WHO Classification of Tumors of Endocrine Organs, 4th edition, lists synonyms for 8290/3 as Hürthle cell carcinoma; oncoycytic carcinoma; oxyphilic carcinoma; follicular carcinoma, Hürthle cell type; and follicular carcinoma, oncocytic variant.

Report germ cell neoplasia in situ (9064/2). Assign 999 for EOD Primary Tumor and assign 9 for SS2018.

This particular histology is in the Soft Tissue Abdomen and Thoracic schema where EOD PT 000 and SS2018 0 are not available. This histology will be moved to the Ovary schema after redefining certain schemas and thus making the more accurate choices for EOD and SS2018 available. The schema redefine is planned for 2024 implementation.

Code this multifocal thyroid carcinoma, single primary, as papillary thyroid carcinoma, follicular variant (8340/3) using Solid Tumor Rules, Other Sites, Rule H13 that says to code the most specific histologic term. We consulted with our endocrine specialty pathologist and when there is a mix of papillary and follicular variants, assign 8340.

Non-invasive follicular thyroid neoplasm with papillary-like nuclear features is coded as 8349/1 beginning in 2021.  According to the WHO Classification of Endocrine Organs, 4th edition, it was formerly classified as non-invasive encapsulated follicular variant of PTC (FVPTC) (8343/2) but was reclassified based on extremely low malignant potential.