• Diseases of the digestive system

        • K50 - Crohn's disease [regional enteritis]
        • K50.0 - Crohn's disease of small intestine
        • K50.00 - Crohn's disease of small intestine without complications
        • K50.01 - Crohn's disease of small intestine with complications
        • K50.011 - Crohn's disease of small intestine with rectal bleeding
        • K50.012 - Crohn's disease of small intestine w intestinal obstruction
        • K50.013 - Crohn's disease of small intestine with fistula
        • K50.014 - Crohn's disease of small intestine with abscess
        • K50.018 - Crohn's disease of small intestine with other complication
        • K50.019 - Crohn's disease of small intestine with unsp complications
        • K50.1 - Crohn's disease of large intestine
        • K50.10 - Crohn's disease of large intestine without complications
        • K50.11 - Crohn's disease of large intestine with complications
        • K50.111 - Crohn's disease of large intestine with rectal bleeding
        • K50.112 - Crohn's disease of large intestine w intestinal obstruction
        • K50.113 - Crohn's disease of large intestine with fistula
        • K50.114 - Crohn's disease of large intestine with abscess
        • K50.118 - Crohn's disease of large intestine with other complication
        • K50.119 - Crohn's disease of large intestine with unsp complications
        • K50.8 - Crohn's disease of both small and large intestine
        • K50.80 - Crohn's disease of both small and lg int w/o complications
        • K50.81 - Crohn's disease of both small and lg int w complications
        • K50.811 - Crohn's disease of both small and lg int w rectal bleeding
        • K50.812 - Crohn's disease of both small and lg int w intestinal obst
        • K50.813 - Crohn's disease of both small and large intestine w fistula
        • K50.814 - Crohn's disease of both small and large intestine w abscess
        • K50.818 - Crohn's disease of both small and lg int w oth complication
        • K50.819 - Crohn's disease of both small and lg int w unsp comp
        • K50.9 - Crohn's disease, unspecified
        • K50.90 - Crohn's disease, unspecified, without complications
        • K50.91 - Crohn's disease, unspecified, with complications
        • K50.911 - Crohn's disease, unspecified, with rectal bleeding
        • K50.912 - Crohn's disease, unspecified, with intestinal obstruction
        • K50.913 - Crohn's disease, unspecified, with fistula
        • K50.914 - Crohn's disease, unspecified, with abscess
        • K50.918 - Crohn's disease, unspecified, with other complication
        • K50.919 - Crohn's disease, unspecified, with unspecified complications
        • K51 - Ulcerative colitis
        • K51.0 - Ulcerative (chronic) pancolitis
        • K51.00 - Ulcerative (chronic) pancolitis without complications
        • K51.01 - Ulcerative (chronic) pancolitis with complications
        • K51.011 - Ulcerative (chronic) pancolitis with rectal bleeding
        • K51.012 - Ulcerative (chronic) pancolitis with intestinal obstruction
        • K51.013 - Ulcerative (chronic) pancolitis with fistula
        • K51.014 - Ulcerative (chronic) pancolitis with abscess
        • K51.018 - Ulcerative (chronic) pancolitis with other complication
        • K51.019 - Ulcerative (chronic) pancolitis with unsp complications
        • K51.2 - Ulcerative (chronic) proctitis
        • K51.20 - Ulcerative (chronic) proctitis without complications
        • K51.21 - Ulcerative (chronic) proctitis with complications
        • K51.211 - Ulcerative (chronic) proctitis with rectal bleeding
        • K51.212 - Ulcerative (chronic) proctitis with intestinal obstruction
        • K51.213 - Ulcerative (chronic) proctitis with fistula
        • K51.214 - Ulcerative (chronic) proctitis with abscess
        • K51.218 - Ulcerative (chronic) proctitis with other complication
        • K51.219 - Ulcerative (chronic) proctitis with unsp complications
        • K51.3 - Ulcerative (chronic) rectosigmoiditis
        • K51.30 - Ulcerative (chronic) rectosigmoiditis without complications
        • K51.31 - Ulcerative (chronic) rectosigmoiditis with complications
        • K51.311 - Ulcerative (chronic) rectosigmoiditis with rectal bleeding
        • K51.312 - Ulcerative (chronic) rectosigmoiditis w intestinal obst
        • K51.313 - Ulcerative (chronic) rectosigmoiditis with fistula
        • K51.314 - Ulcerative (chronic) rectosigmoiditis with abscess
        • K51.318 - Ulcerative (chronic) rectosigmoiditis with oth complication
        • K51.319 - Ulcerative (chronic) rectosigmoiditis w unsp complications
        • K51.4 - Inflammatory polyps of colon
        • K51.40 - Inflammatory polyps of colon without complications
        • K51.41 - Inflammatory polyps of colon with complications
        • K51.411 - Inflammatory polyps of colon with rectal bleeding
        • K51.412 - Inflammatory polyps of colon with intestinal obstruction
        • K51.413 - Inflammatory polyps of colon with fistula
        • K51.414 - Inflammatory polyps of colon with abscess
        • K51.418 - Inflammatory polyps of colon with other complication
        • K51.419 - Inflammatory polyps of colon with unspecified complications
        • K51.5 - Left sided colitis
        • K51.50 - Left sided colitis without complications
        • K51.51 - Left sided colitis with complications
        • K51.511 - Left sided colitis with rectal bleeding
        • K51.512 - Left sided colitis with intestinal obstruction
        • K51.513 - Left sided colitis with fistula
        • K51.514 - Left sided colitis with abscess
        • K51.518 - Left sided colitis with other complication
        • K51.519 - Left sided colitis with unspecified complications
        • K51.8 - Other ulcerative colitis
        • K51.80 - Other ulcerative colitis without complications
        • K51.81 - Other ulcerative colitis with complications
        • K51.811 - Other ulcerative colitis with rectal bleeding
        • K51.812 - Other ulcerative colitis with intestinal obstruction
        • K51.813 - Other ulcerative colitis with fistula
        • K51.814 - Other ulcerative colitis with abscess
        • K51.818 - Other ulcerative colitis with other complication
        • K51.819 - Other ulcerative colitis with unspecified complications
        • K51.9 - Ulcerative colitis, unspecified
        • K51.90 - Ulcerative colitis, unspecified, without complications
        • K51.91 - Ulcerative colitis, unspecified, with complications
        • K51.911 - Ulcerative colitis, unspecified with rectal bleeding
        • K51.912 - Ulcerative colitis, unspecified with intestinal obstruction
        • K51.913 - Ulcerative colitis, unspecified with fistula
        • K51.914 - Ulcerative colitis, unspecified with abscess
        • K51.918 - Ulcerative colitis, unspecified with other complication
        • K51.919 - Ulcerative colitis, unsp with unspecified complications
        • K52 - Other and unsp noninfective gastroenteritis and colitis
        • K52.0 - Gastroenteritis and colitis due to radiation
        • K52.1 - Toxic gastroenteritis and colitis
        • K52.2 - Allergic and dietetic gastroenteritis and colitis
        • K52.21 - Food protein-induced enterocolitis syndrome
        • K52.22 - Food protein-induced enteropathy
        • K52.29 - Other allergic and dietetic gastroenteritis and colitis
        • K52.3 - Indeterminate colitis
        • K52.8 - Other specified noninfective gastroenteritis and colitis
        • K52.81 - Eosinophilic gastritis or gastroenteritis
        • K52.82 - Eosinophilic colitis
        • K52.83 - Microscopic colitis
        • K52.831 - Collagenous colitis
        • K52.832 - Lymphocytic colitis
        • K52.838 - Other microscopic colitis
        • K52.839 - Microscopic colitis, unspecified
        • K52.89 - Other specified noninfective gastroenteritis and colitis
        • K52.9 - Noninfective gastroenteritis and colitis, unspecified