K51
Ulcerative colitis
- Release
- FY 2027
- Effective
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files.
Excludes1
Crohn's disease [regional enteritis] ( K50 .-)
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code to identify any associated fistulas, if applicable:
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anal fistula ( K60.3- )
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anorectal fistula ( K60.5- )
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rectal fistula ( K60.4- )
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code to identify manifestations, such as:
Use Additional Code
pyoderma gangrenosum ( L88 )
More Specific Codes
7 codes under K51
- K51.0 Ulcerative (chronic) pancolitis Has subcodes
- K51.2 Ulcerative (chronic) proctitis Has subcodes
- K51.3 Ulcerative (chronic) rectosigmoiditis Has subcodes
- K51.4 Inflammatory polyps of colon Has subcodes
- K51.5 Left sided colitis Has subcodes
- K51.8 Other ulcerative colitis Has subcodes
- K51.9 Ulcerative colitis, unspecified Has subcodes
Version History
How K51 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentUlcerative colitis
-
FY 2026 Effective
UnchangedUlcerative colitis
Related Codes
Codes whose official notes reference K51
- F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere Billable
- K50 Crohn's disease [regional enteritis]
- K60.3 Anal fistula
- K60.4 Rectal fistula
- K60.5 Anorectal fistula
- K62.6 Ulcer of anus and rectum Billable
- K63.3 Ulcer of intestine Billable
- M07 Enteropathic arthropathies
- M08 Juvenile arthritis
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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