All ICD10 Codes

K29

Non-Billable
ChapterK00–K95
Rankcategory
Official Description

Gastritis and duodenitis

Use a more specific code (0 billable, 9 non-billable)
K29.0Acute gastritishas subcodesK29.2Alcoholic gastritishas subcodesK29.3Chronic superficial gastritishas subcodesK29.4Chronic atrophic gastritishas subcodesK29.5Unspecified chronic gastritishas subcodesK29.6Other gastritishas subcodesK29.7Gastritis, unspecifiedhas subcodesK29.8Duodenitishas subcodesK29.9Gastroduodenitis, unspecifiedhas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

K20-K31 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • hiatus hernia (K44.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • eosinophilic gastritis or gastroenteritis (K52.81)
  • Zollinger-Ellison syndrome (E16.4)

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K20-K31Diseases of esophagus, stomach and duodenum (K20-K31)
K29Gastritis and duodenitisNot billable
K29.0Acute gastritisSubcodes
K29.2Alcoholic gastritisSubcodes
K29.3Chronic superficial gastritisSubcodes
K29.4Chronic atrophic gastritisSubcodes
K29.5Unspecified chronic gastritisSubcodes
K29.6Other gastritisSubcodes
K29.7Gastritis, unspecifiedSubcodes
K29.8DuodenitisSubcodes
K29.9Gastroduodenitis, unspecifiedSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K29:

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

No direct MS-DRG triggers identified.

Cross Reference

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