|  C7A |  | Malignant neuroendocrine tumors   | 
	
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		| CodeAlso | any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-) 
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		| UseAdditionalCode | code to identify any associated endocrine syndrome, such as: carcinoid syndrome (E34.00)
 
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		| Excludes2 | malignant pancreatic islet cell tumors (C25.4) Merkel cell carcinoma (C4A.-)
 
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		|  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.029 |  | Malignant carcinoid tumor of the large intestine, unspecified portion |  
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| Malignant carcinoid tumor of the colon NOS |  |  |  |  |  |  | 
	
		|  C7A.09 |  | Malignant carcinoid tumors of other sites |  |  |  | 
	
		|  C7A.090 |  | Malignant carcinoid tumor of the bronchus and lung |  |  |  |  | 
	
		|  C7A.091 |  | Malignant carcinoid tumor of the thymus |  |  |  |  | 
	
		|  C7A.092 |  | Malignant carcinoid tumor of the stomach |  |  |  |  | 
	
		|  C7A.093 |  | Malignant carcinoid tumor of the kidney |  |  |  |  | 
	
		|  C7A.094 |  | Malignant carcinoid tumor of the foregut, unspecified |  |  |  |  | 
	
		|  C7A.095 |  | Malignant carcinoid tumor of the midgut, unspecified |  |  |  |  | 
	
		|  C7A.096 |  | Malignant carcinoid tumor of the hindgut, unspecified |  |  |  |  | 
	
		|  C7A.098 |  | Malignant carcinoid tumors of other sites |  |  |  | 
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		|  C7A.1 |  | Malignant poorly differentiated neuroendocrine tumors |  
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| Malignant poorly differentiated neuroendocrine tumor NOS |  | Malignant poorly differentiated neuroendocrine carcinoma, any site |  | High grade neuroendocrine carcinoma, any site |  |  | 
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		|  C7A.8 |  | Other malignant neuroendocrine tumors |  |