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K55

⚠ Non-billable (Header)

Vascular disorders of intestine

Diseases of the digestive system (K00-K95)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with K55

  • • necrotizing enterocolitis of newborn (P77.-)

⚠️ Excludes2

direct

May be coded together if both conditions coexist

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

Child Codes (6)

K55.0Acute vascular disorders of intestineK55.1Chronic vascular disorders of intestineK55.2Angiodysplasia of colonK55.3Necrotizing enterocolitisK55.8Other vascular disorders of intestineK55.9Vascular disorder of intestine, unspecified

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Code Information

CodeK55
BillableNo — Header code
CategoryDiseases of the digestive system (K00-K95)
Excludes11 rule(s)
Excludes21 note(s)
Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)