SEER Inquiry System - Report
Produced: 10/06/2025 9:57 PM
Question 20120063
Inquiry Details
References:
WHO Class Digest System Tumors
Question:
Discussion:
Answer:
According to the World Health Organization (WHO) pancreatic neuroendocrine tumors (NET) are malignant. They are reportable.
For pancreas primaries, code NET, G1 (well differentiated) to 8240/3; NET G2 (moderately differentiated) to 8249/3; and nonfunctional NET, GI or G2 to 8150/3.
The histology code for neuroendocrine carcinoma (NEC) is 8246/3, large cell NEC is 8013/3 and small cell NEC is 8041/3.