Answer: A
K57.33 is the appropriate code for this case as it codes for diverticulitis of the large intestine (colon) with bleeding but without perforation or abscess. No signs of abscess or perforation are mentioned in the case.
Option B is not correct because 57.01 codes for diverticulitis of the small intestine along with abscess or perforation and bleeding. This is not the diagnosis here.
Option C is not correct because K57.5 codes for diverticular disease in both small and large intestines. This is not the diagnosis here.
Option D is not correct because K58.0 codes for irritable bowel syndrome, which is not the diagnosis here.
