C18Malignant neoplasm of colon
ICD-10-CM category (non-billable header) code — part of Malignant neoplasms of digestive organs (C15-C26)
Coding Notes
Excludes1 (never code both together)
- malignant carcinoid tumors of the colon (C7A.02-)
Subcategories (10)
- C18.0 Malignant neoplasm of cecum
- C18.1 Malignant neoplasm of appendix
- C18.2 Malignant neoplasm of ascending colon
- C18.3 Malignant neoplasm of hepatic flexure
- C18.4 Malignant neoplasm of transverse colon
- C18.5 Malignant neoplasm of splenic flexure
- C18.6 Malignant neoplasm of descending colon
- C18.7 Malignant neoplasm of sigmoid colon
- C18.8 Malignant neoplasm of overlapping sites of colon
- C18.9 Malignant neoplasm of colon, unspecified