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K31.8

K31.8: Other specified diseases of stomach and duodenum

Non-billable headerICD-10-CM

K31.8 is a non-billable header ICD-10-CM code for other specified diseases of stomach and duodenum. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above K31.8

Not part of this code, but both may be coded when both are present.

Written on K31: Other diseases of stomach and duodenum

Other codes that can never be billed with K31.8

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • K31.2Hourglass stricture and stenosis of stomach
  • K92.2Gastrointestinal hemorrhage, unspecified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K31.8

5 child codes. Green means billable.

Other codes under K31

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.