Hinchey classification of acute diverticulitis

Edward John Hinchey et al. 3 proposed a classification for acute diverticulitis, (anywhere along the bowel, not just the colon) that has been variously adapted, and is useful not only in academia but also in outlining successive stages of severity.


  • stage Ia: phlegmon
  • stage Ib: diverticulitis with pericolic or mesenteric abscess
  • stage II: diverticulitis with walled off pelvic abscess
  • stage III: diverticulitis with generalized purulent peritonitis
  • stage IV: diverticulitis with generalized fecal peritonitis

Article information

rID: 1451
Synonyms or Alternate Spellings:
  • Acute diverticulitis - Hinchey classification
  • Hinchey classification

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Cases and figures

  • Case 1: stage Ia
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  • Case 2: stage Ia
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  • Case 3: stage 1b
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  • Case 4: stage 2b
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