All ICD10 Codes

K31.9

Billable
ChapterK00–K95
Ranksubcategory
Official Description

Disease of stomach and duodenum, unspecified

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).
General instructions are available for the parent sections:
View CH11 NotesView K20-K31 NotesView K31 Notes

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K20-K31Diseases of esophagus, stomach and duodenum (K20-K31)
K31Other diseases of stomach and duodenum
K31.9Disease of stomach and duodenum, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K31.9:

categoryK31
Other diseases of stomach and duodenum
View context instructions
blockK20-K31
Diseases of esophagus, stomach and duodenum (K20-K31)
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026 v43.1

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

DRG 391
Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
DRG 392
Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Disease of stomach and duodenum, unspecified.

Search PCS Codes