ICD-10-CM > K00-K95 > K55-K64 > K55 > K55.0 > K55.02 K55.02 Acute infarction of small intestine Non-Billable/Non-Specific Applicable To Gangrene of small intestineNecrosis of small intestine Codes K55.021Focal (segmental) acute infarction of small intestineK55.022Diffuse acute infarction of small intestineK55.029Acute infarction of small intestine, extent unspecified