Not sure how to code this...along with the Vol. 3 dx...

A patient was admitted for severe right-sided abdominal pain. Work up revealed severe diverticulitis and colonic abscess of the ascending colon. The patient was taken to the OR for a right hemicolectomy. During the procedure the physician inadvertently perforated the small bowel. Sutures were used to repair the laceration. No other complications were noted. On postop day 2, the patient began vomiting. KUB showed a diffuse ileus and nasogastric tube was placed. The patient was maintained on nasogastric suction and IV hydration for the following 2 days. On postop day 4, the tube was removed. He was discharged home in good condition. Final diagnoses: Diverticulitis, colonic abscess, and ileus.

thanks if any help..