K61.3 Ischiorectal abscess

Non-billable header with 2 child codes.

Applies from K61 Abscess of anal and rectal regions

Includes

• abscess of anal and rectal regions
• cellulitis of anal and rectal regions

Codes under K61.3

• K61.31 Horseshoe abscess
• K61.39 Other ischiorectal abscess

Approximate ICD-9-CM (GEMs)

• 566 Abscess of anal and rectal regions (approximate)

Code annotations containing back-references to K61.3

Back-references to K61

• Type 1 Excludes: K60 Fissure and fistula of anal and rectal regions ("fissure and fistula of anal and rectal regions with abscess or cellulitis (K61.-)")
• Type 2 Excludes: K60 Fissure and fistula of anal and rectal regions ("abscess or cellulitis of anal and rectal regions (K61.-)")
• Type 2 Excludes: K63.0 Abscess of intestine ("abscess of anal and rectal regions (K61.-)")
• Type 2 Excludes: L02 Cutaneous abscess, furuncle and carbuncle ("abscess of anus and rectal regions (K61.-)")
• Type 2 Excludes: L03 Cellulitis and acute lymphangitis ("cellulitis of anal and rectal region (K61.-)")
• Type 2 Excludes: L03.31 Cellulitis of trunk ("cellulitis of anal and rectal regions (K61.-)")

Nearby codes

• K61 Abscess of anal and rectal regions
• K61.0 Anal abscess
• K61.1 Rectal abscess
• K61.2 Anorectal abscess
• K61.3 Ischiorectal abscess (this code)
• K61.31 Horseshoe abscess
• K61.39 Other ischiorectal abscess
• K61.4 Intrasphincteric abscess
• K61.5 Supralevator abscess