SEER Inquiry System - Question 20021077 Details

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Question 20021077

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Inquiry Details

References:

2004 SEER Manual, 73

Question:

Histology (Pre-2007)/Primary Site/EOD-Extension--All Sites: How do you code these fields for a resected thyroid that is negative for any diagnostic abnormality and a left ovary that demonstrates "papillary thyroid carcinoma arising in a cystic teratoma"? See discussion.

Discussion:

Teratomas occurring in the ovaries frequently contain various types of fully differentiated tissue that normally occur in other body parts. Should the primary be coded to the ovary or to the organ in which that type of tissue normally occurs?

Answer:

For tumors diagnosed prior to 2007:

Code the Primary Site field to the organ in which the cancer arose. For this tumor, code the Primary Site field to C56.9 [ovary] and Histology to 8260/3 [papillary carcinoma of thyroid]. Use the ovary EOD for tumors diagnosed 1998-2003.

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.

Cancer Site Category:

N/A

Data Item Category:

Primary site, Histology

Other Category:

N/A

Year:

2002