ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 11  /  K55-K64  /  K55
K55 Vascular disorders of intestine
Excludes1 necrotizing enterocolitis of newborn (P77.-)
Excludes2 angioectasia (angiodysplasia) duodenum (K31.81-)
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
K55.1 Chronic vascular disorders of intestine
Chronic ischemic colitis
Chronic ischemic enteritis
Chronic ischemic enterocolitis
Ischemic stricture of intestine
Mesenteric atherosclerosis
Mesenteric vascular insufficiency
K55.2 Angiodysplasia of colon
K55.20 Angiodysplasia of colon without hemorrhage
K55.21 Angiodysplasia of colon with hemorrhage
K55.3 Necrotizing enterocolitis
Excludes1 necrotizing enterocolitis of newborn (P77.-)
Excludes2 necrotizing enterocolitis due to Clostridium difficile (A04.7-)
K55.30 Necrotizing enterocolitis, unspecified
Necrotizing enterocolitis, NOS
K55.31 Stage 1 necrotizing enterocolitis
Necrotizing enterocolitis without pneumatosis, without perforation
K55.32 Stage 2 necrotizing enterocolitis
Necrotizing enterocolitis with pneumatosis, without perforation
K55.33 Stage 3 necrotizing enterocolitis
Necrotizing enterocolitis with perforation
Necrotizing enterocolitis with pneumatosis and perforation
K55.8 Other vascular disorders of intestine
K55.9 Vascular disorder of intestine, unspecified
Ischemic colitis
Ischemic enteritis
Ischemic enterocolitis