| K55 | Vascular disorders of intestine |
| | Acute vascular disorders of intestine |
| | Acute (reversible) ischemia of small intestine |
| | Focal (segmental) acute (reversible) ischemia of small intestine |
| | Diffuse acute (reversible) ischemia of small intestine |
| | Acute (reversible) ischemia of small intestine, extent unspecified |
| | Acute infarction of small intestine |
| | Focal (segmental) acute infarction of small intestine |
| | Diffuse acute infarction of small intestine |
| | Acute infarction of small intestine, extent unspecified |
| | Acute (reversible) ischemia of large intestine |
| | Focal (segmental) acute (reversible) ischemia of large intestine |
| | Diffuse acute (reversible) ischemia of large intestine |
| | Acute (reversible) ischemia of large intestine, extent unspecified |
| | Acute infarction of large intestine |
| | Focal (segmental) acute infarction of large intestine |
| | Diffuse acute infarction of large intestine |
| | Acute infarction of large intestine, extent unspecified |
| | Acute (reversible) ischemia of intestine, part unspecified |
| | Focal (segmental) acute (reversible) ischemia of intestine, part unspecified |
| | Diffuse acute (reversible) ischemia of intestine, part unspecified |
| | Acute (reversible) ischemia of intestine, part and extent unspecified |
| | Acute infarction of intestine, part unspecified |
| | Focal (segmental) acute infarction of intestine, part unspecified |
| | Diffuse acute infarction of intestine, part unspecified |
| | Acute infarction of intestine, part and extent unspecified |
| | Chronic vascular disorders of intestine |
| | Angiodysplasia of colon |
| | Angiodysplasia of colon, without hemorrhage |
| | Angiodysplasia of colon, with hemorrhage |
| | Necrotizing enterocolitis |
| | Necrotizing enterocolitis, unspecified |
| | Stage 1 necrotizing enterocolitis |
| | Stage 2 necrotizing enterocolitis |
| | Stage 3 necrotizing enterocolitis |
| | Other vascular disorders of intestine |
| | Vascular disorder of intestine, unspecified |
