K31.A19 Gastric intestinal metaplasia without dysplasia, unspecified site

Billable ICD-10-CM code, FY2026.

Applies from K31 Other diseases of stomach and duodenum

Includes

• functional disorders of stomach

Excludes2 (not included here)

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

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Code annotations containing back-references to K31.A19

Back-references to K31

• Type 2 Excludes: K59 Other functional intestinal disorders ("functional disorders of stomach (K31.-)")

Diagnosis Index entries for K31.A19

• Metaplasia › gastric intestinal › without dysplasia

Nearby codes

• 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 (this code)
• K31.A2 Gastric intestinal metaplasia with dysplasia
• 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