C26.0 — Malignant neoplasm of intestinal tract, part unspecified
Is C26.0 billable?
Yes, but C26.0 is an unspecified code. C26.0 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, C26.0 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting C26.0 — the more specific alternatives are listed below.
C26.0 at a glance
| Code | C26.0 |
|---|---|
| Description | Malignant neoplasm of intestinal tract, part unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C26.0 group to?
C26.0 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 374Digestive Malignancy with MCCmedical
- 375Digestive Malignancy with CCmedical
- 376Digestive Malignancy without CC/MCCmedical
Inclusion terms
Alternative wording in documentation that is classified to C26.0.
- Malignant neoplasm of intestine NOS
Excludes1 — never code together — inherited from C15-C26
The conditions below can never be reported together with C26.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes1 — never code together — inherited from C26
The conditions below can never be reported together with C26.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- malignant neoplasm of peritoneum and retroperitoneum (C48.-)
Excludes2 — not included here — inherited from C15-C26
The conditions below are not part of C26.0, but a patient may have both at the same time. When documentation supports it, C26.0 and the excluded code may both be reported.
- gastrointestinal stromal tumors (C49.A-)
How long has C26.0 existed?
C26.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.