Intrasphincteric abscess

This code represents a localized collection of pus situated within the muscular layers of an anal sphincter. This condition typically results from an infection of the anal glands, leading to inflammation and abscess formation confined to the intersphincteric space. Patients often present with severe perianal pain, swelling, and sometimes fever.

Use this code when documentation clearly specifies an abscess located within the anal sphincter muscles, distinguishing it from other perianal abscess types. Supporting documentation should include physician notes detailing the location of the abscess, often confirmed by physical examination or imaging studies like MRI.

• Differentiate carefully from perianal abscesses (K61.1) or ischiorectal abscesses (K61.3), which are located in different anatomical spaces.
• Consider an additional code for any associated conditions, such as Crohn's disease, if documented as causative.
• Ensure the documentation specifies "intrasphincteric" or "intersphincteric" to accurately assign this code.