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  5. Diverticular disease of intestine (K57)

Diverticular disease of intestine (K57)

The K57 series of ICD-10 codes are used to classify diverticular disease of the intestine, covering various forms of diverticulitis and diverticulosis affecting the small and large intestines. These codes identify whether the condition involves complications such as perforation, abscess, or bleeding.

These codes specify conditions like diverticulitis of the small intestine with perforation and abscess (K57.0), including cases with or without bleeding (e.g., K57.00, K57.01), and diverticulosis without such complications (K57.1). Synonyms such as "abscess of duodenum due to diverticulitis" or "perforated diverticulum of small intestine" map to these detailed categories, aiding correct coding. Similarly, diverticular disease of the large intestine is classified separately (e.g., K57.2 for complicated cases and K57.3 for uncomplicated cases) with synonyms like "diverticulitis of sigmoid colon" guiding code selection. The codes also include combinations affecting both small and large intestines and cases where the affected part is unspecified (K57.4 to K57.9). Using the appropriate ICD-10 code for diverticular disease of intestine ensures precise documentation of disease severity and complications.

  • Diseases of the digestive system (K00–K95)

    • Other diseases of intestines (K55-K64)

        • Diverticular disease of intestine (K57)

        • 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

Instructional Notations

Code Also

A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

  • if applicable peritonitis K65

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • congenital diverticulum of intestine Q43.8
  • Meckel's diverticulum Q43.0

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • diverticulum of appendix K38.2

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Diverticulitis

Inflammation of a DIVERTICULUM or diverticula.

Diverticulitis, Colonic

Inflammation of the COLONIC DIVERTICULA, generally with abscess formation and subsequent perforation.

Diverticulum

A pouch or sac developed from a tubular or saccular organ, such as the GASTROINTESTINAL TRACT.

Typhlitis

Necrotizing inflammation of the CECUM (typhlon in Greek), sometimes spreading to the APPENDIX and/or the ILEUM. Symptoms include ABDOMINAL PAIN and DIARRHEA. Its pathogenesis is multifactorial. Typhlitis is often associated with NEUTROPENIA and chemotherapy in immunocompromised individuals (IMMUNOCOMPROMISED HOST).