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ICD-10-CM · FY 2026 APRIL UPDATE

K55.0

Acute vascular disorders of intestine

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
K55.01Acute (reversible) ischemia of small intestineCategory
K55.011Focal (segmental) acute (reversible) ischemia of small intestineBillable
K55.012Diffuse acute (reversible) ischemia of small intestineBillable
K55.019Acute (reversible) ischemia of small intestine, extent unspecifiedBillable
K55.02Acute infarction of small intestineCategory
K55.021Focal (segmental) acute infarction of small intestineBillable
K55.022Diffuse acute infarction of small intestineBillable
K55.029Acute infarction of small intestine, extent unspecifiedBillable
K55.03Acute (reversible) ischemia of large intestineCategory
K55.031Focal (segmental) acute (reversible) ischemia of large intestineBillable
K55.032Diffuse acute (reversible) ischemia of large intestineBillable
K55.039Acute (reversible) ischemia of large intestine, extent unspecifiedBillable
K55.04Acute infarction of large intestineCategory
K55.041Focal (segmental) acute infarction of large intestineBillable
K55.042Diffuse acute infarction of large intestineBillable
K55.049Acute infarction of large intestine, extent unspecifiedBillable
K55.05Acute (reversible) ischemia of intestine, part unspecifiedCategory
K55.051Focal (segmental) acute (reversible) ischemia of intestine, part unspecifiedBillable
K55.052Diffuse acute (reversible) ischemia of intestine, part unspecifiedBillable
K55.059Acute (reversible) ischemia of intestine, part and extent unspecifiedBillable
K55.06Acute infarction of intestine, part unspecifiedCategory
K55.061Focal (segmental) acute infarction of intestine, part unspecifiedBillable
K55.062Diffuse acute infarction of intestine, part unspecifiedBillable
K55.069Acute infarction of intestine, part and extent unspecifiedBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.