Diagnosis Code

C16.9 MALIGNANT NEOPLASM OF STOMACH, UNSPECIFIED


Code Information

Diagnosis Code: C16.9

Short Description: Malignant neoplasm of stomach, unspecified

Long Description: Malignant neoplasm of stomach, unspecified

The code C16.9 is VALID for claim submission

Code Classification:

  • Neoplasms (C00–D49)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of stomach (C16)
        • C16.9 Malignant neoplasm of stomach, unspecified

Code Version: 2022 ICD-10-CM


Synonyms

  • Adenocarcinoma of stomach
  • Carcinoma of stomach
  • Diffusely infiltrative tumor configuration
  • Early gastric cancer
  • Epstein-Barr virus associated gastric carcinoma
  • Gastric adenocarcinoma and proximal polyposis of stomach
  • Gastric polyp
  • Gastric polyposis
  • Gastroduodenal disorder
  • HER2-positive gastric cancer
  • Hereditary diffuse carcinoma of stomach
  • Late gastric cancer
  • Leiomyosarcoma of stomach
  • Linitis plastica of stomach
  • Local recurrence of malignant tumor of stomach
  • Malignant tumor of esophagus, stomach and duodenum
  • Malignant tumor of stomach
  • Metastatic gastroesophageal adenocarcinoma
  • Primary carcinoma of stomach
  • Primary HER2-positive gastric cancer
  • Primary malignant mesenchymal neoplasm of stomach
  • Primary malignant neoplasm of stomach
  • Squamous cell carcinoma of stomach
  • Undifferentiated carcinoma of stomach

Diagnostic Related Group(s)

The code C16.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Digestive Malignancy With Mcc (374)
  • Digestive Malignancy With Cc (375)
  • Digestive Malignancy Without Cc/mcc (376)

References to Index of Diseases and Injuries

The code C16.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Gastric cancer NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C16.9 Right Arrow 151.9 Malig neopl stomach NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C16 Malignant neoplasm of stomach
C16.0 Malignant neoplasm of cardia
C16.1 Malignant neoplasm of fundus of stomach
C16.2 Malignant neoplasm of body of stomach
C16.3 Malignant neoplasm of pyloric antrum
C16.4 Malignant neoplasm of pylorus
C16.5 Malignant neoplasm of lesser curvature of stomach, unspecified
C16.6 Malignant neoplasm of greater curvature of stomach, unspecified
C16.8 Malignant neoplasm of overlapping sites of stomach


This page was last updated on: 10/1/2023