2021 ICD-10-CM Codes for Malignant neuroendocrine tumors (C7A)

Instructional Notations

Code Also Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

  • any associated multiple endocrine neoplasia [MEN] syndromes E31.2

Use Additional Code Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

  • code to identify any associated endocrine syndrome, such as:
  • carcinoid syndrome E34.0

Type 2 Excludes Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • malignant pancreatic islet cell tumors C25.4
  • Merkel cell carcinoma C4A
    • ICD-10 Index

      • Neoplasms (C00–D48)

        • Malignant neuroendocrine tumors (C7A)

            • Malignant neuroendocrine tumors (C7A)
            • C7A - Malignant neuroendocrine tumors NON-BILLABLE CODE
            • C7A.0 - Malignant carcinoid tumors NON-BILLABLE CODE
            • C7A.00 - Malignant carcinoid tumor of unspecified site BILLABLE CODE
            • C7A.01 - Malignant carcinoid tumors of the small intestine NON-BILLABLE CODE
            • C7A.010 - Malignant carcinoid tumor of the duodenum BILLABLE CODE
            • C7A.011 - Malignant carcinoid tumor of the jejunum BILLABLE CODE
            • C7A.012 - Malignant carcinoid tumor of the ileum BILLABLE CODE
            • C7A.019 - Malignant carcinoid tumor of the sm int, unsp portion BILLABLE CODE
            • C7A.02 - Malig carcinoid tumors of the appendix, lg int, and rectum NON-BILLABLE CODE
            • C7A.020 - Malignant carcinoid tumor of the appendix BILLABLE CODE
            • C7A.021 - Malignant carcinoid tumor of the cecum BILLABLE CODE
            • C7A.022 - Malignant carcinoid tumor of the ascending colon BILLABLE CODE
            • C7A.023 - Malignant carcinoid tumor of the transverse colon BILLABLE CODE
            • C7A.024 - Malignant carcinoid tumor of the descending colon BILLABLE CODE
            • C7A.025 - Malignant carcinoid tumor of the sigmoid colon BILLABLE CODE
            • C7A.026 - Malignant carcinoid tumor of the rectum BILLABLE CODE
            • C7A.029 - Malignant carcinoid tumor of the lg int, unsp portion BILLABLE CODE
            • C7A.09 - Malignant carcinoid tumors of other sites NON-BILLABLE CODE
            • C7A.090 - Malignant carcinoid tumor of the bronchus and lung BILLABLE CODE
            • C7A.091 - Malignant carcinoid tumor of the thymus BILLABLE CODE
            • C7A.092 - Malignant carcinoid tumor of the stomach BILLABLE CODE
            • C7A.093 - Malignant carcinoid tumor of the kidney BILLABLE CODE
            • C7A.094 - Malignant carcinoid tumor of the foregut, unspecified BILLABLE CODE
            • C7A.095 - Malignant carcinoid tumor of the midgut, unspecified BILLABLE CODE
            • C7A.096 - Malignant carcinoid tumor of the hindgut, unspecified BILLABLE CODE
            • C7A.098 - Malignant carcinoid tumors of other sites BILLABLE CODE
            • C7A.1 - Malignant poorly differentiated neuroendocrine tumors BILLABLE CODE
            • C7A.8 - Other malignant neuroendocrine tumors BILLABLE CODE