ICD-10-CM > K00-K95 > K55-K64 > K57 > K57.2 K57.2 Diverticulitis of large intestine with perforation and abscess Non-Billable/Non-Specific Type 1 Excludes diverticulitis of both small and large intestine with perforation and abscess (K57.4-) Codes K57.20Diverticulitis of large intestine with perforation and abscess without bleedingK57.21Diverticulitis of large intestine with perforation and abscess with bleeding