ICD-10-CM > K00-K95 > K55-K64 > K57 > K57.4 K57.4 Diverticulitis of both small and large intestine with perforation and abscess Non-Billable/Non-Specific Codes K57.40Diverticulitis of both small and large intestine with perforation and abscess without bleedingK57.41Diverticulitis of both small and large intestine with perforation and abscess with bleeding