K31.5
ICD-10BillableObstruction of duodenum
Official ICD-10-CM descriptor (FY2026)
Obstruction of duodenum
K31.5 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Constriction of duodenum
- Duodenal ileus (chronic)
- Stenosis of duodenum
- Stricture of duodenum
- Volvulus of duodenum
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- congenital stenosis of duodenum (Q41.0)
Related codes in K31
- K31.0Acute dilatation of stomach
- K31.1Adult hypertrophic pyloric stenosis
- K31.2Hourglass stricture and stenosis of stomach
- K31.3Pylorospasm, not elsewhere classified
- K31.4Gastric diverticulum
- K31.6Fistula of stomach and duodenum
- K31.7Polyp of stomach and duodenum
- K31.8Other specified diseases of stomach and duodenumcategory
- K31.9Disease of stomach and duodenum, unspecified
- K31.AGastric intestinal metaplasiacategory
Where this code sits
- Parent code
- K31
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.