ICD-10-CM > K00-K95 > K55-K64 > K55 > K55.0 > K55.05 K55.05 Acute (reversible) ischemia of intestine, part unspecified Non-Billable/Non-Specific Codes K55.051Focal (segmental) acute (reversible) ischemia of intestine, part unspecifiedK55.052Diffuse acute (reversible) ischemia of intestine, part unspecifiedK55.059Acute (reversible) ischemia of intestine, part and extent unspecified