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0 Benign carcinoid tumors

D3a.00 Benign carcinoid tumor of unspecified site

Carcinoid tumor NOS

D3a.01 Benign carcinoid tumors of the small intestine

D3a.010 Benign carcinoid tumor of the duodenum

D3a.011 Benign carcinoid tumor of the jejunum

D3a.012 Benign carcinoid tumor of the ileum

D3a.019 Benign carcinoid tumor of the small intestine, unspecified portion

D3a.02 Benign carcinoid tumors of the appendix, large intestine, and rectum

D3a.020 Benign carcinoid tumor of the appendix

D3a.021 Benign carcinoid tumor of the cecum

D3a.022 Benign carcinoid tumor of the ascending colon

D3a.023 Benign carcinoid tumor of the transverse colon

D3a.024 Benign carcinoid tumor of the descending colon

D3a.025 Benign carcinoid tumor of the sigmoid colon

D3a.026 Benign carcinoid tumor of the rectum

D3a.029 Benign carcinoid tumor of the large intestine, unspecified portion

Benign carcinoid tumor of the colon NOS

D3a.09 Benign carcinoid tumors of other sites

D3a.090 Benign carcinoid tumor of the bronchus and lung

D3a.091 Benign carcinoid tumor of the thymus

D3a.092 Benign carcinoid tumor of the stomach

D3a.093 Benign carcinoid tumor of the kidney

D3a.094 Benign carcinoid tumor of the foregut NOS

D3a.095 Benign carcinoid tumor of the midgut NOS

D3a.096 Benign carcinoid tumor of the hindgut NOS

D3a.098 Benign carcinoid tumors of other sites

D3a.8 Other benign neuroendocrine tumors

Neuroendocrine tumor NOS

Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)

Note: Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made. Use additional morphology codes with behavior code /1.

Excludes1: neoplasms of unspecified behavior (D49-)