K57.53 Diverticulitis of both small and large intestine without perforation or abscess with bleeding

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from K57 Diverticular disease of intestine

Excludes1 (never code together)

• congenital diverticulum of intestine (Q43.8)
• Meckel's diverticulum (Q43.0)

Excludes2 (not included here)

• diverticulum of appendix (K38.2)

Code also

• if applicable peritonitis K65.-

MS-DRG index

Defines the logic of DRG(s) 377-379 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 562.03 Diverticulitis of small intestine with hemorrhage (approximate)
• 562.13 Diverticulitis of colon with hemorrhage (approximate)

Code annotations containing back-references to K57.53

Back-references to K57.5

• Type 1 Excludes: K57.1 Diverticular disease of small intestine without perforation or abscess ("diverticular disease of both small and large intestine without perforation or abscess (K57.5-)")
• Type 1 Excludes: K57.3 Diverticular disease of large intestine without perforation or abscess ("diverticular disease of both small and large intestine without perforation or abscess (K57.5-)")

Back-references to K57

• Code Also: K65 Peritonitis ("if applicable diverticular disease of intestine (K57.-)")
• Type 1 Excludes: K92.2 Gastrointestinal hemorrhage, unspecified ("diverticular disease with hemorrhage (K57.-)")

Diagnosis Index entries for K57.53

• Diverticulitis (acute) › intestine › large › with › small intestine › with › bleeding
• Diverticulitis (acute) › intestine › small › with › large intestine › with › bleeding

Nearby codes

• K57.41 Diverticulitis of both small and large intestine with perforation and abscess with bleeding
• K57.5 Diverticular disease of both small and large intestine without perforation or abscess
• K57.50 Diverticulosis of both small and large intestine without perforation or abscess without bleeding
• K57.51 Diverticulosis of both small and large intestine without perforation or abscess with bleeding
• K57.52 Diverticulitis of both small and large intestine without perforation or abscess without bleeding
• K57.53 Diverticulitis of both small and large intestine without perforation or abscess with bleeding (this code)
• K57.8 Diverticulitis of intestine, part unspecified, with perforation and abscess
• K57.80 Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
• K57.81 Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding
• K57.9 Diverticular disease of intestine, part unspecified, without perforation or abscess
• K57.90 Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding