Histology (Pre-2007)--Melanoma: How is a "plaque-like nodular spitzoid malignant melanoma" coded?
For tumors diagnosed prior to 2007:
Code histology to 8721 [nodular melanoma]. Essentially, "plaque-like nodular spitzoid malignant melanoma" is nodular melanoma. Code 8721 is the most specific ICD-O-3 histology code available for this diagnosis.
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.
Multiple Primaries (Pre-2007)--Vulva/Vagina: SEER Program Code Manual rule #3 on page 11 states "If a new cancer of the same histology is diagnosed in the same site after two months, consider this new cancer a separate primary unless stated to be recurrent or metastatic. Should vulva and vagina be exceptions to rule #3, as are prostate and bladder?
For tumors diagnosed prior to 2007:
No. There is no exception for vulva or vagina.
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.
Laterality--Breast: Should laterality be coded to 9 [Paired site but no information concerning laterality] or to the side with the positive lymph nodes for a case in which no breast mass is found but positive axillary lymph nodes are found on only one side?
Code laterality of the primary site to the side with the positive nodes when there are unilateral positive nodes and the laterality of the primary site is otherwise unknown.
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.
Surgery of Primary Site--Prostate: What treatment code is used to represent prostate carcinoma treated with "high intensity focused ultrasound" (HIFU)?
For cases diagnosed 1998 and later:
Code the Surgery of Primary Site field to 17 [Other method of local tumor destruction]. HIFU uses focused energy to destroy tissue. It is classified as a surgical procedure.
Refer to the Hematopoietic Database and Manual to determine the primary site.
Leukemias are coded to C421 [bone marrow]. The ONLY neoplasm that is coded to C420 [blood] is Waldenstrom's macroglobulinemia [9761/3].
SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.
CS Extension--Extramedullary Plasmacytoma: Under what circumstance would CS extension code 80 be used in a case of extramedullary plasmacytoma?
For cases diagnosed prior to 1/1/2010, this answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.
Assign CS extension code 80 [Systemic disease] for extramedullary plasmacytoma involving more than one site. Use code 80 when extramedullary plasmacytoma is NOT single, solitary, unifocal, isolated, mono-ostotic or localized. Code 80 can also be used when the bone marrow is involved but the plasma cells are <10%.
Do not apply EOD instructions to CS.
For cases diagnosed 1/1/10 and later, 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.
Histology--Lymphoma: How is a "lymphocytic lymphoma of follicular center cell origin" coded?
For cases diagnosed prior to 1/1/2010:Assign code 9690 [Follicular lymphoma, NOS]. According to the WHO Classification of Lymphoid tumors, follicular lymphoma is a neoplasm of follicle center B cells which has at least a partially follicular pattern.
Assign code 9695 for follicular lymphoma grade 1, 9691 for follicular lymphoma grade 2, and 9698 for follicular lymphoma grade 3.
For cases diagnosed 1/1/10 and later, 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.
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