Abscess of anal and rectal regions (K61) ICD-10-CM
The K61 code range covers abscess of anal and rectal regions with 9 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- abscess of anal and rectal regions
- cellulitis of anal and rectal regions
Codes in the K61 Range 9 codes · 7 billable
About the K61 Code Range
These abscesses occur in the region of the anus or rectum. The subdivisions distinguish where the abscess occurs.
K61.0 names the anus, K61.1 names the rectum, and K61.2 names both. K61.3 identifies an ischiorectal abscess and divides into K61.31 for a horseshoe abscess and K61.39 for other abscesses at that location. K61.4 and K61.5 name abscesses within a sphincter and above a levator muscle, respectively.
Questions About This Page
How many billable codes are in the K61 range?
Of the 9 codes in this range, 7 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 K61 range classify?
The range classifies abscess of anal and rectal regions. 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.
