C26.9 - Malignant neoplasm of ill-defined sites within the digestive system
- Applicable to Malignant neoplasm of ill-defined sites within the digestive system
- The 2025 edition of ICD10-CM C26.9 became effective on October 1, 2024.
- This is the American ICD10-CM version of C26.9 - other international versions of ICD10 C26.9 may differ.
- C26.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Inclusion Term
- Malignant neoplasm of alimentary canal or tract NOS
- Malignant neoplasm of gastrointestinal tract NOS
Type 1 Excludes
- malignant neoplasm of abdominal NOS (C76.2)
- malignant neoplasm of intra-abdominal NOS (C76.2)
The following codes above C26.9 contain annotation back-references that may be applicable to C26.9:
Chapter: C00-D49 Neoplasms
Section: C15-C26 Malignant neoplasms of digestive organs
Category: C26 Malignant neoplasm of other and ill-defined digestive organs
Billable/Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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