Diverticular disease of intestine (K57) ICD-10-CM
The K57 code range covers diverticular disease of intestine with 33 ICD-10-CM diagnosis codes. 24 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
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.
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.
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
Codes in the K57 Range 33 codes · 24 billable
- K57 Diverticular disease of intestineNon-billable
- K57.0 Diverticulitis of small intestine with perforation and abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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 abscessNon-billable
- 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
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K57 range.
Diverticulitis
Inflammation of a DIVERTICULUM or diverticula.
Diverticulum
A pouch or sac developed from a tubular or saccular organ, such as the GASTROINTESTINAL TRACT.
About the K57 Code Range
Diverticular disease of the intestine appears under K57 as diverticulosis or diverticulitis.
The subdivisions separate disease of the small intestine, large intestine, both, or an unspecified part. At each site, one branch identifies diverticulitis with perforation and abscess. The other separates diverticulosis from diverticulitis without either. The final codes distinguish whether bleeding is present.
Questions About This Page
How many billable codes are in the K57 range?
Of the 33 codes in this range, 24 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K57 range classify?
The range classifies diverticular disease of intestine. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
