2025 ICD-10 CM DIAGNOSIS INDEX TERMS STARTING WITH K

  • Ulcerative (chronic) rectosigmoiditis with complications - K51.31
  • Ulcerative (chronic) rectosigmoiditis with rectal bleeding - K51.311
  • Ulcerative (chronic) rectosigmoiditis with intestinal obstruction - K51.312
  • Ulcerative (chronic) rectosigmoiditis with fistula - K51.313
  • Ulcerative (chronic) rectosigmoiditis with abscess - K51.314
  • Ulcerative (chronic) rectosigmoiditis with other complication - K51.318
  • Ulcerative (chronic) rectosigmoiditis with unspecified complications - K51.319
  • Inflammatory polyps of colon - K51.4
  • Inflammatory polyps of colon without complications - K51.40
  • Inflammatory polyps of colon with complications - K51.41
  • Inflammatory polyps of colon with rectal bleeding - K51.411
  • Inflammatory polyps of colon with intestinal obstruction - K51.412
  • Inflammatory polyps of colon with fistula - K51.413
  • Inflammatory polyps of colon with abscess - K51.414
  • Inflammatory polyps of colon with other complication - K51.418
  • Inflammatory polyps of colon with unspecified complications - K51.419
  • Left sided colitis - K51.5
  • Left sided colitis without complications - K51.50
  • Left sided colitis with complications - K51.51
  • Left sided colitis with rectal bleeding - K51.511
  • Left sided colitis with intestinal obstruction - K51.512
  • Left sided colitis with fistula - K51.513
  • Left sided colitis with abscess - K51.514
  • Left sided colitis with other complication - K51.518
  • Left sided colitis with unspecified complications - K51.519
  • Other ulcerative colitis - K51.8
  • Other ulcerative colitis without complications - K51.80
  • Other ulcerative colitis with complications - K51.81
  • Other ulcerative colitis with rectal bleeding - K51.811
  • Other ulcerative colitis with intestinal obstruction - K51.812
  • Other ulcerative colitis with fistula - K51.813
  • Other ulcerative colitis with abscess - K51.814
  • Other ulcerative colitis with other complication - K51.818
  • Other ulcerative colitis with unspecified complications - K51.819
  • Ulcerative colitis, unspecified - K51.9
  • Ulcerative colitis, unspecified, without complications - K51.90
  • Ulcerative colitis, unspecified, with complications - K51.91
  • Ulcerative colitis, unspecified with rectal bleeding - K51.911
  • Ulcerative colitis, unspecified with intestinal obstruction - K51.912
  • Ulcerative colitis, unspecified with fistula - K51.913
  • Ulcerative colitis, unspecified with abscess - K51.914
  • Ulcerative colitis, unspecified with other complication - K51.918
  • Ulcerative colitis, unspecified with unspecified complications - K51.919
  • Gastroenteritis and colitis due to radiation - K52.0
  • Toxic gastroenteritis and colitis - K52.1
  • Allergic and dietetic gastroenteritis and colitis - K52.2
  • Food protein-induced enterocolitis syndrome - K52.21
  • Food protein-induced enteropathy - K52.22
  • Other allergic and dietetic gastroenteritis and colitis - K52.29
  • Indeterminate colitis - K52.3
  • Other specified noninfective gastroenteritis and colitis - K52.8
  • Eosinophilic gastritis or gastroenteritis - K52.81
  • Eosinophilic colitis - K52.82
  • Microscopic colitis - K52.83
  • Collagenous colitis - K52.831
  • Lymphocytic colitis - K52.832
  • Other microscopic colitis - K52.838
  • Microscopic colitis, unspecified - K52.839
  • Other specified noninfective gastroenteritis and colitis - K52.89
  • Noninfective gastroenteritis and colitis, unspecified - K52.9
  • Acute vascular disorders of intestine - K55.0
  • Acute (reversible) ischemia of small intestine - K55.01
  • Focal (segmental) acute (reversible) ischemia of small intestine - K55.011
  • Diffuse acute (reversible) ischemia of small intestine - K55.012
  • Acute (reversible) ischemia of small intestine, extent unspecified - K55.019
  • Acute infarction of small intestine - K55.02
  • Focal (segmental) acute infarction of small intestine - K55.021
  • Diffuse acute infarction of small intestine - K55.022
  • Acute infarction of small intestine, extent unspecified - K55.029
  • Acute (reversible) ischemia of large intestine - K55.03
  • Focal (segmental) acute (reversible) ischemia of large intestine - K55.031
  • Diffuse acute (reversible) ischemia of large intestine - K55.032
  • Acute (reversible) ischemia of large intestine, extent unspecified - K55.039
  • Acute infarction of large intestine - K55.04
  • Focal (segmental) acute infarction of large intestine - K55.041
  • Diffuse acute infarction of large intestine - K55.042
  • Acute infarction of large intestine, extent unspecified - K55.049
  • Acute (reversible) ischemia of intestine, part unspecified - K55.05
  • Focal (segmental) acute (reversible) ischemia of intestine, part unspecified - K55.051
  • Diffuse acute (reversible) ischemia of intestine, part unspecified - K55.052
  • Acute (reversible) ischemia of intestine, part and extent unspecified - K55.059
  • Acute infarction of intestine, part unspecified - K55.06
  • Focal (segmental) acute infarction of intestine, part unspecified - K55.061
  • Diffuse acute infarction of intestine, part unspecified - K55.062
  • Acute infarction of intestine, part and extent unspecified - K55.069
  • Chronic vascular disorders of intestine - K55.1
  • Angiodysplasia of colon - K55.2
  • Angiodysplasia of colon without hemorrhage - K55.20
  • Angiodysplasia of colon with hemorrhage - K55.21
  • Necrotizing enterocolitis - K55.3
  • Necrotizing enterocolitis, unspecified - K55.30
  • Stage 1 necrotizing enterocolitis - K55.31
  • Stage 2 necrotizing enterocolitis - K55.32
  • Stage 3 necrotizing enterocolitis - K55.33
  • Other vascular disorders of intestine - K55.8
  • Vascular disorder of intestine, unspecified - K55.9
  • Paralytic ileus - K56.0
  • Intussusception - K56.1
  • Volvulus - K56.2
  • Gallstone ileus - K56.3