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  6. 2024 ICD-10-CM Code C16
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code C16

Malignant neoplasm of stomach

ICD-10-CM Code:
C16
ICD-10 Code for:
Malignant neoplasm of stomach
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Neoplasms
    (C00–D49)
    • Malignant neoplasms of digestive organs
      (C15-C26)
      • Malignant neoplasm of stomach
        (C16)

C16 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 stomach. The code is not specific and is NOT valid for the year 2024 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.

Specific Coding Applicable to Malignant neoplasm of stomach

Non-specific codes like C16 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for malignant neoplasm of stomach:

  • Use C16.0 for Malignant neoplasm of cardia - BILLABLE CODE

  • Use C16.1 for Malignant neoplasm of fundus of stomach - BILLABLE CODE

  • Use C16.2 for Malignant neoplasm of body of stomach - BILLABLE CODE

  • Use C16.3 for Malignant neoplasm of pyloric antrum - BILLABLE CODE

  • Use C16.4 for Malignant neoplasm of pylorus - BILLABLE CODE

  • Use C16.5 for Malignant neoplasm of lesser curvature of stomach, unspecified - BILLABLE CODE

  • Use C16.6 for Malignant neoplasm of greater curvature of stomach, unspecified - BILLABLE CODE

  • Use C16.8 for Malignant neoplasm of overlapping sites of stomach - BILLABLE CODE

  • Use C16.9 for Malignant neoplasm of stomach, unspecified - BILLABLE CODE

Tabular List of Diseases and Injuries

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


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code to identify:
  • alcohol abuse and dependence F10

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • malignant carcinoid tumor of the stomach C7A.092

Patient Education


Stomach Cancer

The stomach is an organ between the esophagus and the small intestine. It mixes food with stomach acid and helps digest protein. Stomach cancer mostly affects older people - two-thirds of people who have it are over age 65. Your risk of getting it is also higher if you:

  • Have had a Helicobacter pylori infection
  • Have had stomach inflammation
  • Are a man
  • Eat lots of salted, smoked, or pickled foods
  • Smoke cigarettes
  • Have a family history of stomach cancer

It is hard to diagnose stomach cancer in its early stages. Indigestion and stomach discomfort can be symptoms of early cancer, but other problems can cause the same symptoms. In advanced cases, there may be blood in your stool, vomiting, unexplained weight loss, jaundice, or trouble swallowing. Doctors diagnose stomach cancer with a physical exam, blood and imaging tests, an endoscopy, and a biopsy.

Because it is often found late, it can be hard to treat stomach cancer. Treatment options include surgery, chemotherapy, radiation or a combination.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

What is Stomach Cancer?

Learn about stomach cancer risk factors, symptoms, tests to diagnose, factors affecting prognosis, staging, treatment, and coping.
[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.