C16.9

Billable

ChapterC00–D49

Ranksubcategory

Official Description

Malignant neoplasm of stomach, unspecified

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Includes

Gastric cancer NOS

General instructions are available for the parent sections:

View C15-C26 Notes View C16 Notes

Clinical Hierarchy

CH2Neoplasms (C00-D49)

C15-C26Malignant neoplasms of digestive organs (C15-C26)

C16Malignant neoplasm of stomach

C16.9Malignant neoplasm of stomach, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C16.9:

categoryC16

Malignant neoplasm of stomach

View context instructions

blockC15-C26

Malignant neoplasms of digestive organs (C15-C26)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to C16.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

8 raw paths

Adenocarcinoma2 unique routes

diffuse type

unspecified site→C16.9

intestinal type

unspecified site→C16.9

Carcinoma (malignant)2 unique routes

diffuse type

unspecified site→C16.9

intestinal type

unspecified site→C16.9

Leather bottle stomach1 unique routes

Direct index entry→C16.9

Linitis (gastric) plastica1 unique routes

Direct index entry→C16.9

Neoplasm, neoplastic2 unique routes

stomach→C16.9(2 variants)

wall NEC→C16.9

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 374

Digestive Malignancy with MCC

DRG 375

Digestive Malignancy with CC

DRG 376

Digestive Malignancy without CC/MCC

Cross Reference

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