C7A.09Malignant carcinoid tumors of other sites

C7A.09 is the ICD-10-CM diagnosis code for malignant carcinoid tumors of other sites. It belongs to category C7A (malignant neuroendocrine tumors), block C7A (malignant neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

Within C7A.0, choose C7A.09 (of other sites) only when documentation doesn't support a more specific option: tumor of unspecified site (C7A.00), of the small intestine (C7A.01) and of the appendix, large intestine, and rectum (C7A.02).

To report this condition, pick the subcode that matches the documentation: C7A.090 (lung), C7A.091 (thymus), C7A.092 (stomach), C7A.093 (kidney), C7A.094 (unspecified), C7A.095 (unspecified), C7A.096 (unspecified) and C7A.098 (sites).

Use an additional code to identify any associated endocrine syndrome, such as: carcinoid syndrome (E34.00).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.