ICD-9-CM diagnosis code (retired)
557.0 — Acute vascular insufficiency of intestine
About ICD-9-CM 557.0
557.0 is an ICD-9-CM diagnosis code for acute vascular insufficiency of intestine. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 22 ICD-10-CM codes, such as K55.011 (Focal (segmental) acute (reversible) ischemia of small intestine), K55.012 (Diffuse acute (reversible) ischemia of small intestine) and K55.019 (Acute (reversible) ischemia of small intestine, extent unspecified). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- K55.011Focal (segmental) acute (reversible) ischemia of small intestineapproximate
- K55.012Diffuse acute (reversible) ischemia of small intestineapproximate
- K55.019Acute (reversible) ischemia of small intestine, extent unspecifiedapproximate
- K55.021Focal (segmental) acute infarction of small intestineapproximate
- K55.022Diffuse acute infarction of small intestineapproximate
- K55.029Acute infarction of small intestine, extent unspecifiedapproximate
- K55.031Focal (segmental) acute (reversible) ischemia of large intestineapproximate
- K55.032Diffuse acute (reversible) ischemia of large intestineapproximate
- K55.039Acute (reversible) ischemia of large intestine, extent unspecifiedapproximate
- K55.041Focal (segmental) acute infarction of large intestineapproximate
- K55.042Diffuse acute infarction of large intestineapproximate
- K55.049Acute infarction of large intestine, extent unspecifiedapproximate
- K55.051Focal (segmental) acute (reversible) ischemia of intestine, part unspecifiedapproximate
- K55.052Diffuse acute (reversible) ischemia of intestine, part unspecifiedapproximate
- K55.059Acute (reversible) ischemia of intestine, part and extent unspecifiedapproximate
- K55.061Focal (segmental) acute infarction of intestine, part unspecifiedapproximate
- K55.062Diffuse acute infarction of intestine, part unspecifiedapproximate
- K55.069Acute infarction of intestine, part and extent unspecifiedapproximate
- K55.30Necrotizing enterocolitis, unspecifiedapproximate
- K55.31Stage 1 necrotizing enterocolitisapproximate
- K55.32Stage 2 necrotizing enterocolitisapproximate
- K55.33Stage 3 necrotizing enterocolitisapproximate
Common questions about 557.0
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.