ICD-10-CM · Chapter 11 · K00-K95
K61 Abscess of anal and rectal regions
Includes
- abscess of anal and rectal regions
- cellulitis of anal and rectal regions
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K61..0 | Anal abscess | Yes |
| K61..1 | Rectal abscess | Yes |
| K61..2 | Anorectal abscess | Yes |
| K61..3 | Ischiorectal abscess | No |
| K61..31 | Horseshoe abscess | Yes |
| K61..39 | Other ischiorectal abscess | Yes |
| K61..4 | Intrasphincteric abscess | Yes |
| K61..5 | Supralevator abscess | Yes |
Last reviewed: September 2026