C17.9 - Malignant neoplasm of small intestine, unspecified
| ICD-10: | C17.9 |
| Short Description: | Malignant neoplasm of small intestine, unspecified |
| Long Description: | Malignant neoplasm of small intestine, unspecified |
| Status: | Valid for Submission |
| Version: | ICD-10-CM 2023 |
| Code Classification: |
C17.9 is a billable ICD-10 code used to specify a medical diagnosis of malignant neoplasm of small intestine, unspecified. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic intestine, intestinal small .
Unspecified diagnosis codes like C17.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Adenocarcinoma of small intestine
- Carcinoma of small intestine
- Follicular lymphoma of small intestine
- Leiomyosarcoma of small intestine
- Lymphoma of small bowel
- Malignant tumor of small intestine
- Non-Hodgkin's lymphoma of intestine
- Primary adenocarcinoma of small intestine
- Primary malignant neoplasm of small intestine
- Primary sarcoma of small intestine
- pT1: Tumor invades lamina propria or submucosa
- pT2: Tumor invades muscularis propria
- pT3: Tumor invades through the muscularis propria into the subserosa or into the nonperitonealized perimuscular tissue
- pT4: Tumor perforates the visceral peritoneum or directly invades other organs or structures
- Small intestine TNM finding
- Small intestine TNM finding
- Small intestine TNM finding
- Small intestine TNM finding
- Squamous cell carcinoma of small intestine
Convert to ICD-9 Code
| Source ICD-10 Code | Target ICD-9 Code | |
|---|---|---|
| C17.9 | 152.9 - Mal neo small bowel NOS |
Table of Neoplasms
This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
| Neoplasm, neoplastic | Malignant Primary |
Malignant Secondary |
CaInSitu | Benign | Uncertain Behavior |
Unspecified Behavior |
|---|---|---|---|---|---|---|
| »Neoplasm, neoplastic »intestine, intestinal »small | C17.9 | C78.4 | D01.40 | D13.30 | D37.2 | D49.0 |
Patient Education
Intestinal 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:
- Abdominal pain
- Weight loss for no reason
- Blood in the stool
- A lump in the abdomen
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 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- 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)