K55.0

Acute vascular disorders of intestine

K55.1

Chronic vascular disorders of intestine

K55.1

Chronic vascular disorders of intestine (Abdominal Angina)

K56.0

Paralytic ileus

K56.1 Intussusception

 K56.2

Volvulus

 K56.4

Other impaction of intestine

 K56.5 Intestinal adhesions [bands] with obstruction (postinfection)

K56.6

Other & unspecified intestinal obstruction

K57 Diverticular Disease of Intestine

K58 Irritable Bowel Syndrome

K59.0 Constipation

K59.1 Functional diarrhea

K59.2 Neurogenic bowel, not elsewhere classified

K59.3

Megacolon, not elsewhere classified

K59.4

Anal

spasm

K59.8

Other specified functional intestinal disorders

K59.9

Functional

intestinal

disorder, unspecified

[Auto-brewery Syndrome (Gut Fermentation)]

K60.0

Acute Anal Fissure

K60.1

Chronic Anal Fissure

K60.2

Anal Fissure, Unspecified

K60.3

Anal Fistula

K60.4

Rectal Fistula

K60.5 Anorectal Fistula

K61 Abscess of Anal & Rectal Regions

K62.0

Anal polyp

K62.1

Rectal polyp

K62.2

Anal prolapse

K62.3

Rectal prolapse

 K62.4

Stenosis of anus & rectum

K62.5 Hemorrhage of anus & rectum

K62.6

Ulcer of anus & rectum

K62.7 Radiation proctitis

K62.8

Other specified diseases of anus & rectum

K62.9

Disease of anus & rectum, unspecified

K63 Other Diseases of Intestine

K64 Hemorrhoids & Perianal Venous Thrombosis