Abscess of Anal and Rectal Regions

A new subcategory was created at category K61 , Abscess of anal and rectal regions, for ischiorectal abscess ( K61.3 ). Two new codes were created at this new subcategory to specifically identify horseshoe abscess ( K61.31 ), and other ischiorectal abscess ( K61.39 ), A new code was also created for supralevator abscess ( K61.5 ). Codes already exist for anal abscess ( K61.0 ) and intrasphincteric abscess ( K61.4 ); however, an inclusion term was added at code K61.4 for intersphincteric abscess. Abscesses of the anal and rectal regions are categorized...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article explains changes within ICD-10-CM category K61 and summarizes the anatomic grouping of anorectal abscesses. It is aimed at coding professionals, CDI staff, and clinicians who need to understand how the topic is organized in the classification system and why location matters for documentation and reporting.

Why This Topic Matters

Accurate identification of abscess location affects classification, documentation quality, and the ability to distinguish related anorectal conditions within ICD-10-CM.

What You Will Learn

  • How the ICD-10-CM category structure for anorectal abscesses is organized
  • Which broad anatomic locations are discussed for abscess classification
  • Why anatomic detail is important in documenting these conditions
  • How the article frames recent code-set changes within K61

Who Should Read This

  • Medical coders
  • Coding auditors
  • Clinical documentation improvement specialists
  • Physicians and other clinicians
  • Health information management professionals

Codes Discussed


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