SEER Inquiry System - Report
Produced: 10/15/2025 7:24 AM
Question 20010026
Inquiry Details
References:
2007 SEER Manual, C-1133. Appendix C
Question:
Discussion:
Answer:
For cases diagnosed 2007 or later:
Assign code 8140 [adenocarcinoma, NOS]. See the MP/H rules for Other Sites, histology coding rule H10.
History:
For cases diagnosed prior to 2007:
Code the Histology field to 8550/3 [acinar cell carcinoma] because there is no ICD-O-2 or ICD-O-3 listing for microacinar. The word "type" is a term that indicates majority of a tumor. The term "microacinar" would be a term used to determine the histology code.
References
Coding Complex Morph Dx's, pg 2, Rule C2 (Revised August 2002)
SPCSM 2004. pg 85