K31 Other diseases of stomach and duodenum
ICD-10-CM category K31 sits in Chapter 11 (Diseases of the digestive system, K00-K95). It contains 26 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
K31.8 Other specified diseases of stomach and duodenumK31.81 Angiodysplasia of stomach and duodenumK31.A Gastric intestinal metaplasiaK31.A1 Gastric intestinal metaplasia without dysplasiaK31.A2 Gastric intestinal metaplasia with dysplasia
Billable codes in K31
| Code | Description |
|---|---|
K31.0 | Acute dilatation of stomach |
K31.1 | Adult hypertrophic pyloric stenosis |
K31.2 | Hourglass stricture and stenosis of stomach |
K31.3 | Pylorospasm, not elsewhere classified |
K31.4 | Gastric diverticulum |
K31.5 | Obstruction of duodenum |
K31.6 | Fistula of stomach and duodenum |
K31.7 | Polyp of stomach and duodenum |
K31.811 | Angiodysplasia of stomach and duodenum with bleeding |
K31.819 | Angiodysplasia of stomach and duodenum without bleeding |
K31.82 | Dieulafoy lesion (hemorrhagic) of stomach and duodenum |
K31.83 | Achlorhydria |
K31.84 | Gastroparesis |
K31.89 | Other diseases of stomach and duodenum |
K31.9 | Disease of stomach and duodenum, unspecified |
K31.A0 | Gastric intestinal metaplasia, unspecified |
K31.A11 | Gastric intestinal metaplasia without dysplasia, involving the antrum |
K31.A12 | Gastric intestinal metaplasia without dysplasia, involving the body (corpus) |
K31.A13 | Gastric intestinal metaplasia without dysplasia, involving the fundus |
K31.A14 | Gastric intestinal metaplasia without dysplasia, involving the cardia |
K31.A15 | Gastric intestinal metaplasia without dysplasia, involving multiple sites |
K31.A19 | Gastric intestinal metaplasia without dysplasia, unspecified site |
K31.A21 | Gastric intestinal metaplasia with low grade dysplasia |
K31.A22 | Gastric intestinal metaplasia with high grade dysplasia |
K31.A29 | Gastric intestinal metaplasia with dysplasia, unspecified |
K31.B | Hypertrophic pyloric stenosis, in childhood |
Search within ICD-10-CM for K31 and related codes
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