ICD-10-CM › C00-D49 › C15-C26 › C26 Malignant neoplasm of other and... › C26.9
Malignant neoplasm of ill-defined sites within the digestive system
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Malignant neoplasm of ill-defined sites within the digestive system
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from C26 Malignant neoplasm of other and ill-defined digestive organs
Excludes1 - never coded here
- malignant neoplasm of peritoneum and retroperitoneum (C48.-)
Inherited from the C15-C26 section Malignant neoplasms of digestive organs (C15-C26)
Excludes1 - never coded here
- Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes2 - not included here
- gastrointestinal stromal tumors (C49.A-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Neoplasm, neoplastic > gastrocolic
- Neoplasm, neoplastic > gastrointestinal NEC
- Neoplasm, neoplastic > alimentary canal or tract NEC
- Neoplasm, neoplastic > digestive organs, system, tube, or tract NEC
- Neoplasm, neoplastic > peritoneum, peritoneal > overlapping lesion > with digestive organs
Codes in the same group
| Code | Description | Status |
|---|---|---|
| C26.0 | Malignant neoplasm of intestinal tract, part unspecified | Valid |
| C26.1 | Malignant neoplasm of spleen | Valid |