2020 ICD-10-CM Diagnosis Code C26.0

Malignant neoplasm of intestinal tract, part unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • C26.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM C26.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of C26.0 - other international versions of ICD-10 C26.0 may differ.
Applicable To
  • Malignant neoplasm of intestine NOS
The following code(s) above C26.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C26.0:
  • C00-D49
    2020 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C15-C26
    2020 ICD-10-CM Range C15-C26

    Malignant neoplasms of digestive organs

    Type 1 Excludes
    • Kaposi's sarcoma of gastrointestinal sites (C46.4)
    Type 2 Excludes
    • gastrointestinal stromal tumors (C49.A-)
    Malignant neoplasms of digestive organs
  • C26
    ICD-10-CM Diagnosis Code C26

    Malignant neoplasm of other and ill-defined digestive organs

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • malignant neoplasm of peritoneum and retroperitoneum (C48.-)
    Malignant neoplasm of other and ill-defined digestive organs
Approximate Synonyms
  • Cancer of the intestine
  • Cancer of the intestine, adenocarcinoma
  • Primary adenocarcinoma of intestinal tract
  • Primary malignant neoplasm of intestinal tract
Clinical Information
  • A primary or metastatic malignant neoplasm involving the small intestine, large intestine, or both. Representative examples are carcinomas, lymphomas, and sarcomas.
  • A primary or metastatic malignant tumor involving the small intestine, large intestine, or both. Representative examples are carcinomas, lymphomas, and sarcomas.
  • Your small intestine is part of your digestive system. It is a long tube that connects your stomach to your large intestine. Intestinal cancer is rare, but eating a high-fat diet or having crohn's disease, celiac disease, or a history of colonic polyps can increase your risk.abdominal pain or lumps, weight loss for no reason or blood in the stool can be symptoms. Imaging tests that create pictures of the small intestine and the area around it can help diagnose intestinal cancer and show whether it has spread.surgery is the most common treatment. Additional options include chemotherapy, radiation or a combination. nih: national cancer institute
ICD-10-CM C26.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 374 Digestive malignancy with mcc
  • 375 Digestive malignancy with cc
  • 376 Digestive malignancy without cc/mcc

Convert C26.0 to ICD-9-CM

Code 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
ICD-10-CM Codes Adjacent To C26.0
C25 Malignant neoplasm of pancreas
C25.0 Malignant neoplasm of head of pancreas
C25.1 Malignant neoplasm of body of pancreas
C25.2 Malignant neoplasm of tail of pancreas
C25.3 Malignant neoplasm of pancreatic duct
C25.4 Malignant neoplasm of endocrine pancreas
C25.7 Malignant neoplasm of other parts of pancreas
C25.8 Malignant neoplasm of overlapping sites of pancreas
C25.9 Malignant neoplasm of pancreas, unspecified
C26 Malignant neoplasm of other and ill-defined digestive organs
C26.0 Malignant neoplasm of intestinal tract, part unspecified
C26.1 Malignant neoplasm of spleen
C26.9 Malignant neoplasm of ill-defined sites within the digestive system
C30 Malignant neoplasm of nasal cavity and middle ear
C30.0 Malignant neoplasm of nasal cavity
C30.1 Malignant neoplasm of middle ear
C31 Malignant neoplasm of accessory sinuses
C31.0 Malignant neoplasm of maxillary sinus
C31.1 Malignant neoplasm of ethmoidal sinus
C31.2 Malignant neoplasm of frontal sinus
C31.3 Malignant neoplasm of sphenoid sinus

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.