ICD-10-CM › K00-K95 › K20-K31 › K31 Other diseases of stomach and duodenum › K31.A

K31.A

Gastric intestinal metaplasia

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2022 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • K31.A0 Gastric intestinal metaplasia, unspecified
  • K31.A1 Gastric intestinal metaplasia without dysplasia (also a header)
  • K31.A2 Gastric intestinal metaplasia with dysplasia (also a header)

What has happened to this code

Every change the publisher made, from 2022 to now.

  1. FY2022 Added to the code set Gastric intestinal metaplasia

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from K31 Other diseases of stomach and duodenum

Excludes2 - not included here

  • diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43)
  • diverticulum of duodenum (K57.00-K57.13)

Includes

  • functional disorders of stomach

Inherited from the K20-K31 section Diseases of esophagus, stomach and duodenum (K20-K31)

Excludes2 - not included here

  • hiatus hernia (K44.-)

Codes in the same group

CodeDescriptionStatus
K31.0 Acute dilatation of stomach Valid
K31.1 Adult hypertrophic pyloric stenosis Valid
K31.2 Hourglass stricture and stenosis of stomach Valid
K31.3 Pylorospasm, not elsewhere classified Valid
K31.4 Gastric diverticulum Valid
K31.5 Obstruction of duodenum Valid
K31.6 Fistula of stomach and duodenum Valid
K31.7 Polyp of stomach and duodenum Valid
K31.8 Other specified diseases of stomach and duodenum Not billable
K31.9 Disease of stomach and duodenum, unspecified Valid
K31.B Hypertrophic pyloric stenosis, in childhood Valid