###### K61 Abscess of anal and rectal regions
**_Incl.:_**

abscess of anal and rectal regions
cellulitis with or without fistula

**K61.0 Anal abscess**

Perianal abscess
**_Excl.: intrasphincteric abscess (K61.4)_**

**K61.1 Rectal abscess**

Perirectal abscess
**_Excl.: ischiorectal abscess (K61.3)_**

**K61.2 Anorectal abscess**

**K61.3 Ischiorectal abscess**

Abscess of ischiorectal fossa

**K61.4 Intrasphincteric abscess**