209: Neuroendocrine tumors
Code first any associated multiple endocrine neoplasia syndrome (258.01-258.03)
Use additional code to identify associated endocrine syndrome, such as:
carcinoid syndrome (259.2)
Excludes:
benign pancreatic islet cell tumors (211.7)
malignant pancreatic islet cell tumors (157.4)
209.7 Secondary neuroendocrine tumors
Secondary carcinoid tumors
209.70: Secondary neuroendocrine tumor, unspecified site
209.71: Secondary neuroendocrine tumor of distant lymph nodes
209.72: Secondary neuroendocrine tumor of liver
209.73: Secondary neuroendocrine tumor of bone
209.74: Secondary neuroendocrine tumor of peritoneum
Mesentery metastasis of neuroendocrine tumor
209.75: Secondary Merkel cell carcinoma
Merkel cell carcinoma nodal presentation
Merkel cell carcinoma visceral metastatic presentation
Secondary Merkel cell carcinoma, any site
209.79: Secondary neuroendocrine tumor of other sites

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