ICD-10-CM · Chapter 2 · C00-D49
C26 Malignant neoplasm of other and ill-defined digestive organs
3 subcodes
Block: Malignant neoplasms of digestive organs (C15-C26)
Excludes 1 (cannot be coded together)
- malignant neoplasm of peritoneum and retroperitoneum (C48.-)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
| C26..0 | Malignant neoplasm of intestinal tract, part unspecified | Yes |
| C26..1 | Malignant neoplasm of spleen | Yes |
| C26..9 | Malignant neoplasm of ill-defined sites within the digestive system | Yes |
Last reviewed: September 2026