ICD-10-CM · Chapter 11 · K00–K95
K31.9
Disease of stomach and duodenum, unspecified
Diseases of the digestive system
Quick facts
- Code
- K31.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 11 — Diseases of the digestive system
- Category
- K31 — Other diseases of stomach and duodenum
- Specificity
- 4 characters
How coders use this code
ICD-10-CM K31.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of disease of stomach and duodenum, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in K31
- K31Other diseases of stomach and duodenum
- 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
- K31.5Obstruction of duodenum
- K31.6Fistula of stomach and duodenum
- K31.7Polyp of stomach and duodenum
- K31.8Other specified diseases of stomach and duodenum
- K31.81Angiodysplasia of stomach and duodenum
- K31.811Angiodysplasia of stomach and duodenum with bleeding
- K31.819Angiodysplasia of stomach and duodenum without bleeding
- K31.82Dieulafoy lesion (hemorrhagic) of stomach and duodenum
- K31.83Achlorhydria
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