|  K55.0 |  | Acute vascular disorders of intestine | 
	
		|  |  | 
| Infarction of appendices epiploicae |  | Mesenteric (artery) (vein) embolism |  | Mesenteric (artery) (vein) infarction |  | Mesenteric (artery) (vein) thrombosis |  | 
|  |  | 
	
		|  K55.01 |  | Acute (reversible) ischemia of small intestine |  |  |  | 
	
		|  K55.011 |  | Focal (segmental) acute (reversible) ischemia of small intestine |  |  |  |  | 
	
		|  K55.012 |  | Diffuse acute (reversible) ischemia of small intestine |  |  |  |  | 
	
		|  K55.019 |  | Acute (reversible) ischemia of small intestine, extent unspecified |  |  | 
|  |  | 
	
		|  K55.02 |  | Acute infarction of small intestine |  
		|  |  | 
| Gangrene of small intestine |  | Necrosis of small intestine |  |  |  |  | 
	
		|  K55.021 |  | Focal (segmental) acute infarction of small intestine |  |  |  |  | 
	
		|  K55.022 |  | Diffuse acute infarction of small intestine |  |  |  |  | 
	
		|  K55.029 |  | Acute infarction of small intestine, extent unspecified |  |  | 
|  |  | 
	
		|  K55.03 |  | Acute (reversible) ischemia of large intestine |  
		|  |  | 
| Acute fulminant ischemic colitis |  | Subacute ischemic colitis |  |  |  |  | 
	
		|  K55.031 |  | Focal (segmental) acute (reversible) ischemia of large intestine |  |  |  |  | 
	
		|  K55.032 |  | Diffuse acute (reversible) ischemia of large intestine |  |  |  |  | 
	
		|  K55.039 |  | Acute (reversible) ischemia of large intestine, extent unspecified |  |  | 
|  |  | 
	
		|  K55.04 |  | Acute infarction of large intestine |  
		|  |  | 
| Gangrene of large intestine |  | Necrosis of large intestine |  |  |  |  | 
	
		|  K55.041 |  | Focal (segmental) acute infarction of large intestine |  |  |  |  | 
	
		|  K55.042 |  | Diffuse acute infarction of large intestine |  |  |  |  | 
	
		|  K55.049 |  | Acute infarction of large intestine, extent unspecified |  |  | 
|  |  | 
	
		|  K55.05 |  | Acute (reversible) ischemia of intestine, part unspecified |  |  |  | 
	
		|  K55.051 |  | Focal (segmental) acute (reversible) ischemia of intestine, part unspecified |  |  |  |  | 
	
		|  K55.052 |  | Diffuse acute (reversible) ischemia of intestine, part unspecified |  |  |  |  | 
	
		|  K55.059 |  | Acute (reversible) ischemia of intestine, part and extent unspecified |  |  | 
|  |  | 
	
		|  K55.06 |  | Acute infarction of intestine, part unspecified |  
		|  |  | 
| Acute intestinal infarction |  | Gangrene of intestine |  | Necrosis of intestine |  |  |  |  | 
	
		|  K55.061 |  | Focal (segmental) acute infarction of intestine, part unspecified |  |  |  |  | 
	
		|  K55.062 |  | Diffuse acute infarction of intestine, part unspecified |  |  |  |  | 
	
		|  K55.069 |  | Acute infarction of intestine, part and extent unspecified |  |  |