K31.A1

K31.A1: Gastric intestinal metaplasia without dysplasia

Non-billable headerICD-10-CM

K31.A1 is a non-billable header ICD-10-CM code for gastric intestinal metaplasia without dysplasia. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above K31.A1

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

Written on K31: Other diseases of stomach and duodenum

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

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.A1

6 child codes. Green means billable.

K31.A11Gastric intestinal metaplasia without dysplasia, involving the antrum
K31.A12Gastric intestinal metaplasia without dysplasia, involving the body (corpus)
K31.A13Gastric intestinal metaplasia without dysplasia, involving the fundus
K31.A14Gastric intestinal metaplasia without dysplasia, involving the cardia
K31.A15Gastric intestinal metaplasia without dysplasia, involving multiple sites
K31.A19Gastric intestinal metaplasia without dysplasia, unspecified site

Other codes under K31.A

K31.A0Gastric intestinal metaplasia, unspecified
K31.A2Gastric intestinal metaplasia with dysplasia