Other diseases of intestines (K55-K64) ICD-10-CM
The K55–K64 section covers other diseases of intestines with 206 ICD-10-CM diagnosis codes, of which 157 are billable in fiscal year 2027. The section is organized into the 10 code ranges listed below.
Code Ranges in This Section 10 ranges · 206 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the K55–K64 Code Range
These conditions affect the intestine, anus, and rectum. They include intestinal blood vessel disorders, bowel obstruction, changes in bowel function, and hemorrhoids.
K55 separates intestinal blood vessel disorders into acute, chronic, and other forms. K56 groups bowel obstruction without a hernia by type, including twisted bowel and obstruction from intestinal bands. K57 distinguishes diverticular disease by intestinal location and whether perforation and abscess are present.
K58 separates irritable bowel syndrome by diarrhea, constipation, or a mix of both. The condition involves recurring bowel symptoms without a clear cause. K59 includes other functional intestinal disorders, such as constipation and functional diarrhea.
K60 distinguishes fissures from fistulas in the anal and rectal regions. K61 separates abscesses by location. K62 includes other anal and rectal conditions, while K63 includes other intestinal conditions. K64 separates hemorrhoids by degree and also includes perianal venous thrombosis.
Questions About This Page
How many codes are in the K55-K64 range?
The K55-K64 range contains 206 ICD-10-CM diagnosis codes in FY 2027. 157 of them are billable, and the rest are category headers that organize the section.
What conditions does K55-K64 cover?
The range covers other diseases of intestines. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
