2026 ICD-10-CM Diagnosis Code C16Malignant neoplasm of stomach
C16 is a non-billable ICD-10-CM category code for malignant neoplasm of stomach, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C16.0, C16.1, C16.2, and C16.3.
Code Identity
Code Classification
Specific Coding for Malignant neoplasm of stomachOverview
Non-specific codes like C16 require more characters. Use one of these billable codes instead:
Use C16.0 for Malignant neoplasm of cardia
Use C16.1 for Malignant neoplasm of fundus of stomach
Use C16.2 for Malignant neoplasm of body of stomach
Use C16.3 for Malignant neoplasm of pyloric antrum
Use C16.4 for Malignant neoplasm of pylorus
Use C16.5 for Malignant neoplasm of lesser curvature of stomach, unspecified
Use C16.6 for Malignant neoplasm of greater curvature of stomach, unspecified
Use C16.8 for Malignant neoplasm of overlapping sites of stomach
Use C16.9 for Malignant neoplasm of stomach, unspecified
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
- code to identify:
- alcohol abuse and dependence F10
Type 2 Excludes
- malignant carcinoid tumor of the stomach C7A.092
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.
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.
Patient EducationClinical
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:
The full article covers:
- What is Stomach Cancer?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About C16Overview
Is C16 (Malignant neoplasm of stomach) a billable code?
No. This is a category header that groups the codes for malignant neoplasm of stomach, and headers cannot be submitted on claims. Claims for malignant neoplasm of stomach need a more specific code from this category, such as C16.0, C16.1, and C16.2.
