SEER Inquiry System - Search

For cases diagnosed 1998-2003:

Dermal lymphovascular invasion and tumor in dermal lymphatics would both be coded as dermal lymphatic invasion.

For primary site cervix uteri, only histologies with behavior codes of 3 [invasive] are reportable to SEER for all registries.

Some SEER registries have opted to continue to collect behavior codes of 2 [in situ] for cervix uteri primaries.

For cases diagnosed 1998-2003:

Code the EOD-Extension field to 60 [Tumor thrombus in a renal vein, NOS]. A thrombus can be a bolus of tumor cells within a large vein that may or may not still be connected/contiguous with the primary tumor. However, both a discontinuous and contiguous thrombus are coded to 60.

For cases diagnosed prior to 1/1/2010:Code the Histology field to 9670/3 [Malignant lymphoma, small lymphocytic, NOS] and the Primary Site field to C77._ [lymph nodes] when CLL/SLL is diagnosed in lymph node or solid tissue, even if the clinician refers to CLL. When CLL/SLL is diagnosed in the blood, code as leukemia.

Refer to clarification #6 on the ICD-O-3 Errata and Clarifications. "...if disease is diagnosed only in the blood or bone marrow, code the primary site to C42.1, bone marrow and assign the leukemia morphology code. If the diagnosis is made on any other tissue (typically lymph nodes, lymphatic structures, breast, and stomach), code to the tissue involved and assign the lymphoma morphology. If the diagnosis is made on both blood or bone marrow and a tissue biopsy, code the tissue involved and assign the lymphoma morphology."

For cases diagnosed 2010 forward, 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.

For cases diagnosed 1998-2003:

Code the EOD-Lymph Nodes field to 9 [Unknown], based on the information provided.

The physician's statement of an N category from a TNM may be used to determine lymph node involvement in the absence of other information. However, you cannot assume nodal involvement based on the incomplete staging information of "Stage IV" for a base of tongue primary. For this primary site, extension into the hypopharynx from this primary is equivalent to T4/Stage IV. Therefore you cannot assume the clinician's assessment of the case as Stage IV represents his assessment of lymph node involvement.

SEER defines the apex as being the bottom-most portion of the gland. Apex means "narrowest part," which in the prostate would be the bottom-most portion of the gland.

For tumors diagnosed prior to 2007:

When there are two breast tumors, one mucinous, the other duct carcinoma, report as two primaries when the pathologist's opinion clearly states that there are separate primaries.

If there is no such information from the pathologist, the two tumors must be separate with clear (negative) margins to be reported as two primaries. Otherwise, report as one primary.

The ICD-O-3 combination codes are not intended to combine tumors of different histologic types.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

For cases diagnosed 1998-2003:

Code EOD extension as 30 [Localized, NOS] and laterality as 4 [Bilateral involvement]. The next update to the SEER edits will allow this combination.

The case is reportable if a pathologist or clinician confirms a diagnosis of cancer. If there is no such confirmation, the case is not SEER reportable.