K31.811 Angiodysplasia of stomach and duodenum with bleeding

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

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) 377-379 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 537.83 Angiodysplasia of stomach and duodenum with hemorrhage

Code annotations containing back-references to K31.811

Back-references to K31.811

• Type 1 Excludes: K92.2 Gastrointestinal hemorrhage, unspecified ("angiodysplasia of stomach with hemorrhage (K31.811)")

Back-references to K31.81

• Type 2 Excludes: K55 Vascular disorders of intestine ("angioectasia (angiodysplasia) duodenum (K31.81-)")

Back-references to K31

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

Diagnosis Index entries for K31.811

• Angiodysplasia (cecum) (colon) › duodenum (and stomach) › with bleeding
• Angiodysplasia (cecum) (colon) › stomach (and duodenum) › with bleeding
• Ectasia, ectasis › gastric antral vascular (GAVE) › with hemorrhage
• Watermelon stomach › with hemorrhage

Nearby codes

• K31.5 Obstruction of duodenum
• K31.6 Fistula of stomach and duodenum
• K31.7 Polyp of stomach and duodenum
• K31.8 Other specified diseases of stomach and duodenum
• K31.81 Angiodysplasia of stomach and duodenum
• K31.811 Angiodysplasia of stomach and duodenum with bleeding (this code)
• K31.819 Angiodysplasia of stomach and duodenum without bleeding
• K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
• K31.83 Achlorhydria
• K31.84 Gastroparesis
• K31.89 Other diseases of stomach and duodenum