Metastatic small bowel neuroendocrine tumor icd 10 July 8, 2019 16 32 64 128 Icd 10 code for metastatic small bowel neuroendocrine tumor Metastatic neuroendocrine tumor icd 10 Neuroendocrine tumor of small intestine icd 10 Metastatic colon adenocarcinoma icd 10