SEER Inquiry System - Question 20071076 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 10/05/2025 5:25 PM

Question 20071076

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

2007 SEER Manual, C-1134. Appendix C

Question:

MP/H Rules/Histology--Thyroid: Regarding rule H15, is the mixed code 8340 [Papillary carcinoma, follicular variant] used when there are subtypes of these histologies described, such as a tumor diagnosed with follicular and papillary microcarcinoma or should 8341 [Papillary microcarcinoma] be used?

Discussion:

Answer:

For cases diagnosed 2007 or later:

For coding purposes, this is a papillary and follicular combination that would be coded to the combination code 8340/3 [Papillary carcinoma, follicular variant].

For thyroid cancer only, the term micropapillary does not refer to a specific histologic type. It means that the papillary portion of the tumor is minimal or occult, usually less than 1 cm. in diameter.

Cancer Site Category:

Thyroid

Data Item Category:

Histology

Other Category:

N/A

Year:

2007