2021 ICD-10-CM Code C17

Malignant neoplasm of small intestine

Version 2021

Not Valid for Submission

C17 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of malignant neoplasm of small intestine. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:C17
Short Description:Malignant neoplasm of small intestine
Long Description:Malignant neoplasm of small intestine

Code Classification

Specific Coding for Malignant neoplasm of small intestine

Non-specific codes like C17 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for malignant neoplasm of small intestine:

  • BILLABLE CODE - Use C17.0 for Malignant neoplasm of duodenum
  • BILLABLE CODE - Use C17.1 for Malignant neoplasm of jejunum
  • BILLABLE CODE - Use C17.2 for Malignant neoplasm of ileum
  • BILLABLE CODE - Use C17.3 for Meckel's diverticulum, malignant
  • BILLABLE CODE - Use C17.8 for Malignant neoplasm of overlapping sites of small intestine
  • BILLABLE CODE - Use C17.9 for Malignant neoplasm of small intestine, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C17:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Information for Patients


Intestinal Cancer

Also called: Duodenal cancer, Ileal cancer, Jejunal cancer, Small intestine cancer

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.

Possible signs of small intestine cancer include

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 therapy, or a combination.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)