AHA Coding Clinic® for ICD-9 - 2008 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Neuroendocrine Tumors

Effective October 1, 2008, a new category has been added to the Neoplasms chapter to identify neuroendocrine tumors. Neuroendocrine tumors arise from endocrine or neuroendocrine cells scattered throughout the body. The most common sites are the bronchi, stomach, small intestine, appendix and rectum. These tumors are commonly classified according to the presumed embryonic site of origin, such as: the foregut (bronchi and stomach), the midgut (small intestine and appendix), and the hindgut (colon and rectum). A carcinoid tumor is a tumor that develops from enterochromaffin cells. These cells produce hormones that normally are found in the small intestine, appendix...

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