K55.1

✓ Billable

Chronic vascular disorders of intestine

Diseases of the digestive system (K00-K95)

Also Known As

Chronic ischemic colitisChronic ischemic enteritisChronic ischemic enterocolitisIschemic stricture of intestineMesenteric atherosclerosisMesenteric vascular insufficiency

❌ Excludes1

inherited from K55

Rules from parent category K55: Vascular disorders of intestine

• necrotizing enterocolitis of newborn (P77.-)

⚠️ Excludes2

inherited from K55

Rules from parent category K55: Vascular disorders of intestine

• angioectasia (angiodysplasia) duodenum (K31.81-)

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Code Information

CodeK55.1

BillableYes

ParentK55

CategoryDiseases of the digestive system (K00-K95)

Excludes11 rule(s)

Excludes21 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)