K51 ICD-10-CA category: Ulcerative colitis
K51 isn’t a code on its own. Choose one of the 7 codes beneath it, the one the documentation supports.
Official description
K51Ulcerative colitis
ICD-10-CA · Canada
Codes in K51
K51 isn’t a code on its own. Open the code that matches what the note documents.
Notes for K51
As CIHI prints them, with any note K51 takes from the headings above it.
Includes
- Noninfective inflammatory bowel diseaseFrom K50-K52 Noninfective enteritis and colitis
Excludes
Conditions classified elsewhere.
- Irritable bowel syndrome (K58.-)megacolon (K59.3)From K50-K52 Noninfective enteritis and colitis
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)
Where K51 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K50-K52Noninfective enteritis and colitis
- 3Category K51Ulcerative colitis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is K51 a valid ICD-10-CA code?
No. K51 (Ulcerative colitis) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 7 codes; record the one the documentation supports.
Where is K51 in ICD-10-CA?
K51 sits under K50-K52 Noninfective enteritis and colitis, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K51?
ICD-10-CA lists Includes, Excludes notes for K51, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.