Malignant neoplasm of ill-defined sites within the digestive system
- C26.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Malignant neoplasm of ill-defined sites within the dgstv sys
- The 2024 edition of ICD-10-CM C26.9 became effective on October 1, 2023.
- This is the American ICD-10-CM version of C26.9 – other international versions of ICD-10 C26.9 may differ.
Applicable To
- 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 code(s) above C26.9 contain annotation back-references
that may be applicable to C26.9:
- C00-D49 Neoplasms
- C15-C26 Malignant neoplasms of digestive organs
- C26 Malignant neoplasm of other and ill-defined digestive organs
Approximate Synonyms
- Adenocarcinoma, gastrointestinal tract
- Cancer gi tract mucinous adenocarcinoma primary
- Cancer of the gastrointestinal tract
- Mucinous adenocarcinoma of gastrointestinal tract
- Primary adenocarcinoma of gastrointestinal tract
- Primary malignant neoplasm of gastrointestinal tract
Clinical Information
- A primary or metastatic malignant neoplasm involving any part of the gastrointestinal system.
ICD-10-CM C26.9 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):
- 374 Digestive malignancy with mcc
- 375 Digestive malignancy with cc
- 376 Digestive malignancy without cc/mcc
Convert C26.9 to ICD-9-CMCode History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change