K61 ICD-10-CA category: Abscess of anal and rectal regions
K61 isn’t a code on its own. Choose one of the 5 codes beneath it, the one the documentation supports.
Official description
K61Abscess of anal and rectal regions
ICD-10-CA · Canada
Codes in K61
K61 isn’t a code on its own. Open the code that matches what the note documents.
Notes for K61
As CIHI prints them, with any note K61 takes from the headings above it.
Includes
- abscess, cellulitis of anal and rectal regions with or without fistula
Excludes
Conditions classified elsewhere.
- 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 K61 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K55-K64Other diseases of intestines
- 3Category K61Abscess of anal and rectal regions
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 K61 a valid ICD-10-CA code?
No. K61 (Abscess of anal and rectal regions) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 5 codes; record the one the documentation supports.
Where is K61 in ICD-10-CA?
K61 sits under K55-K64 Other diseases of intestines, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K61?
ICD-10-CA lists Includes, Excludes notes for K61, 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.
Codes beside K61
View K55-K64K55Vascular disorders of intestineK56Paralytic ileus and intestinal obstruction without herniaK57Diverticular disease of intestineK58Irritable bowel syndromeK59Other functional intestinal disordersK60Fissure and fistula of anal and rectal regionsK62Other diseases of anus and rectumK63Other diseases of intestineK64Haemorrhoids and perianal venous thrombosis