K31.8
ICD-10Non-billable categoryOther specified diseases of stomach and duodenum
Official ICD-10-CM descriptor (FY2026)
Other specified diseases of stomach and duodenum
K31.8 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
ICD-10-CM FY2026 defines 5 codes beneath K31.8. See the ICD-10-CM index for what this site publishes.
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
- K31.5Obstruction of duodenum
- K31.6Fistula of stomach and duodenum
- K31.7Polyp of stomach and duodenum
- 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.