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neoplasm of thyroid gland (C73)

malignant neuroendocrine tumors (C7a.-)
C75.0 Malignant neoplasm of parathyroid gland
C75.1 Malignant neoplasm of pituitary gland
C75.2 Malignant neoplasm of craniopharyngeal duct
C75.3 Malignant neoplasm of pineal gland
C75.4 Malignant neoplasm of carotid body
C75.5 Malignant neoplasm of aortic body and other paraganglia
C75.8 Malignant neoplasm with pluriglandular involvement, unspecified
C75.9 Malignant neoplasm of endocrine gland, unspecified

Malignant neuroendocrine tumors (C7a)

C7a Malignant neuroendocrine tumors

Code also any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)
Use additional code to identify any associated endocrine syndrome, such as:
carcinoid syndrome (E34.0)
Excludes2: malignant pancreatic islet cell tumors (C25.4)
Merkel cell carcinoma (C4a.-)
C7a.0 Malignant carcinoid tumors
C7a.00 Malignant carcinoid tumor of unspecified site
C7a.01 Malignant carcinoid tumors of the small intestine
C7a.010 Malignant carcinoid tumor of the duodenum
C7a.011 Malignant carcinoid tumor of the jejunum
C7a.012 Malignant carcinoid tumor of the ileum
C7a.019 Malignant carcinoid tumor of the small intestine, unspecified portion
C7a.02 Malignant carcinoid tumors of the appendix, large intestine, and rectum
C7a.020 Malignant carcinoid tumor of the appendix
C7a.021 Malignant carcinoid tumor of the cecum
C7a.022 Malignant carcinoid tumor of the ascending colon
C7a.023 Malignant carcinoid tumor of the transverse colon
C7a.024 Malignant carcinoid tumor of the descending colon
C7a.025 Malignant carcinoid tumor of the sigmoid colon
C7a.026 Malignant carcinoid tumor of the rectum
C7a.