Other diseases of intestines (K55-K64)
Browse all the diagnosis codes used for other diseases of intestines (k55-k64). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
Diseases of the digestive system (K00–K95)
Other diseases of intestines (K55-K64)
K55 Vascular disorders of intestine
K55.0 Acute vascular disorders of intestine
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
- 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
- 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
- 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
- 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
K55.2 Angiodysplasia of colon
- K55.20 Angiodysplasia of colon without hemorrhage
- K55.21 Angiodysplasia of colon with hemorrhage
K55.3 Necrotizing enterocolitis
- K55.30 Necrotizing enterocolitis, unspecified
- K55.31 Stage 1 necrotizing enterocolitis
- K55.32 Stage 2 necrotizing enterocolitis
- K55.33 Stage 3 necrotizing enterocolitis
- K55.8 Other vascular disorders of intestine
- K55.9 Vascular disorder of intestine, unspecified
Vascular disorders of intestine (K55)
K56 Paralytic ileus and intestinal obstruction without hernia
- K56.0 Paralytic ileus
- K56.1 Intussusception
- K56.2 Volvulus
- K56.3 Gallstone ileus
K56.4 Other impaction of intestine
- K56.41 Fecal impaction
- K56.49 Other impaction of intestine
K56.5 Intestinal adhesions [bands] with obstruction (postinfection)
- K56.50 Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
- K56.51 Intestinal adhesions [bands], with partial obstruction
- K56.52 Intestinal adhesions [bands] with complete obstruction
K56.6 Other and unspecified intestinal obstruction
K56.60 Unspecified intestinal obstruction
- K56.600 Partial intestinal obstruction, unspecified as to cause
- K56.601 Complete intestinal obstruction, unspecified as to cause
- K56.609 Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
K56.69 Other intestinal obstruction
- K56.690 Other partial intestinal obstruction
- K56.691 Other complete intestinal obstruction
- K56.699 Other intestinal obstruction unspecified as to partial versus complete obstruction
- K56.7 Ileus, unspecified
Paralytic ileus and intestinal obstruction without hernia (K56)
K57 Diverticular disease of intestine
K57.0 Diverticulitis of small intestine with perforation and abscess
- K57.00 Diverticulitis of small intestine with perforation and abscess without bleeding
- K57.01 Diverticulitis of small intestine with perforation and abscess with bleeding
K57.1 Diverticular disease of small intestine without perforation or abscess
- K57.10 Diverticulosis of small intestine without perforation or abscess without bleeding
- K57.11 Diverticulosis of small intestine without perforation or abscess with bleeding
- K57.12 Diverticulitis of small intestine without perforation or abscess without bleeding
- K57.13 Diverticulitis of small intestine without perforation or abscess with bleeding
K57.2 Diverticulitis of large intestine with perforation and abscess
- K57.20 Diverticulitis of large intestine with perforation and abscess without bleeding
- K57.21 Diverticulitis of large intestine with perforation and abscess with bleeding
K57.3 Diverticular disease of large intestine without perforation or abscess
- K57.30 Diverticulosis of large intestine without perforation or abscess without bleeding
- K57.31 Diverticulosis of large intestine without perforation or abscess with bleeding
- K57.32 Diverticulitis of large intestine without perforation or abscess without bleeding
- K57.33 Diverticulitis of large intestine without perforation or abscess with bleeding
K57.4 Diverticulitis of both small and large intestine with perforation and abscess
- K57.40 Diverticulitis of both small and large intestine with perforation and abscess without bleeding
- K57.41 Diverticulitis of both small and large intestine with perforation and abscess with bleeding
K57.5 Diverticular disease of both small and large intestine without perforation or abscess
- K57.50 Diverticulosis of both small and large intestine without perforation or abscess without bleeding
- K57.51 Diverticulosis of both small and large intestine without perforation or abscess with bleeding
- K57.52 Diverticulitis of both small and large intestine without perforation or abscess without bleeding
- K57.53 Diverticulitis of both small and large intestine without perforation or abscess with bleeding
K57.8 Diverticulitis of intestine, part unspecified, with perforation and abscess
- K57.80 Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
- K57.81 Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding
K57.9 Diverticular disease of intestine, part unspecified, without perforation or abscess
- K57.90 Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding
- K57.91 Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding
- K57.92 Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding
- K57.93 Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding
Diverticular disease of intestine (K57)
K59 Other functional intestinal disorders
K59.0 Constipation
- K59.00 Constipation, unspecified
- K59.01 Slow transit constipation
- K59.02 Outlet dysfunction constipation
- K59.03 Drug induced constipation
- K59.04 Chronic idiopathic constipation
- K59.09 Other constipation
- K59.1 Functional diarrhea
- K59.2 Neurogenic bowel, not elsewhere classified
K59.3 Megacolon, not elsewhere classified
- K59.31 Toxic megacolon
- K59.39 Other megacolon
- K59.4 Anal spasm
K59.8 Other specified functional intestinal disorders
- K59.81 Ogilvie syndrome
- K59.89 Other specified functional intestinal disorders
- K59.9 Functional intestinal disorder, unspecified
Other functional intestinal disorders (K59)
K62 Other diseases of anus and rectum
- K62.0 Anal polyp
- K62.1 Rectal polyp
- K62.2 Anal prolapse
- K62.3 Rectal prolapse
- K62.4 Stenosis of anus and rectum
- K62.5 Hemorrhage of anus and rectum
- K62.6 Ulcer of anus and rectum
- K62.7 Radiation proctitis
K62.8 Other specified diseases of anus and rectum
- K62.81 Anal sphincter tear (healed) (nontraumatic) (old)
- K62.82 Dysplasia of anus
- K62.89 Other specified diseases of anus and rectum
- K62.9 Disease of anus and rectum, unspecified
Other diseases of anus and rectum (K62)
K63 Other diseases of intestine
- K63.0 Abscess of intestine
- K63.1 Perforation of intestine (nontraumatic)
- K63.2 Fistula of intestine
- K63.3 Ulcer of intestine
- K63.4 Enteroptosis
- K63.5 Polyp of colon
K63.8 Other specified diseases of intestine
- K63.81 Dieulafoy lesion of intestine
K63.82 Intestinal microbial overgrowth NEW CODE
K63.821 Small intestinal bacterial overgrowth NEW CODE
- K63.8211 Small intestinal bacterial overgrowth, hydrogen-subtype NEW CODE
- K63.8212 Small intestinal bacterial overgrowth, hydrogen sulfide-subtype NEW CODE
- K63.8219 Small intestinal bacterial overgrowth, unspecified NEW CODE
- K63.822 Small intestinal fungal overgrowth NEW CODE
- K63.829 Intestinal methanogen overgrowth, unspecified NEW CODE
- K63.89 Other specified diseases of intestine
- K63.9 Disease of intestine, unspecified
Other diseases of intestine (K63)
K64 Hemorrhoids and perianal venous thrombosis
- K64.0 First degree hemorrhoids
- K64.1 Second degree hemorrhoids
- K64.2 Third degree hemorrhoids
- K64.3 Fourth degree hemorrhoids
- K64.4 Residual hemorrhoidal skin tags
- K64.5 Perianal venous thrombosis
- K64.8 Other hemorrhoids
- K64.9 Unspecified hemorrhoids
Hemorrhoids and perianal venous thrombosis (K64)