A neoplasm with neuroendocrine differentiation that arises from the colon. It includes well differentiated neuroendocrine tumors (low and intermediate grade) and poorly differentiated neuroendocrine carcinomas (high grade). The disease is colon neuroendocrine neoplasm (MONDO_0002882). Also known as: colon NET, colon neuroendocrine tumor, colon neuroendocrine tumor, well differentiated, low or intermediate grade, colon neuroendocrine tumour, colonic neuroendocrine neoplasm, colonic neuroendocrine tumor, colonic neuroendocrine tumour, neuroendocrine neoplasm of colon.