K55.01 Acute (reversible) ischemia of small intestine

Non-billable header with 3 child codes.

Applies from K55 Vascular disorders of intestine

Excludes1 (never code together)

• necrotizing enterocolitis of newborn (P77.-)

Excludes2 (not included here)

• angioectasia (angiodysplasia) duodenum (K31.81-)

Applies from K55.0 Acute vascular disorders of intestine

Applicable to

• Infarction of appendices epiploicae
• Mesenteric (artery) (vein) embolism
• Mesenteric (artery) (vein) infarction
• Mesenteric (artery) (vein) thrombosis

Codes under K55.01

• 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

Code annotations containing back-references to K55.01

Back-references to K55.0

• Type 2 Excludes: I74 Arterial embolism and thrombosis ("mesenteric embolism and thrombosis (K55.0-)")
• Type 2 Excludes: I82 Other venous embolism and thrombosis ("mesenteric (K55.0-)")

Nearby codes

• K55 Vascular disorders of intestine
• K55.0 Acute vascular disorders of intestine
• K55.01 Acute (reversible) ischemia of small intestine (this code)
• 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
• K55.021 Focal (segmental) acute infarction of small intestine