Final answer:
The ICD-10 code for diverticulosis is K57.9. The surgery for colostomy takedown is coded from 0DQM0ZZ to 0DQP0ZZ depending on specifics. Diverticulitis is when diverticula in the colon get inflamed, possibly leading to serious complications necessitating surgery.
Step-by-step explanation:
The ICD-10 code for a patient admitted for a takedown of colostomy, previously performed for perforated diverticulitis, is not provided as one single code. However, the procedure of colostomy reversal would likely fall under a code for the surgical procedure, which are found in the range of codes from 0DQM0ZZ to 0DQP0ZZ, depending on the specific details of the procedure. As for the diagnosis, the patient has a final diagnosis of diverticulosis, which is coded under ICD-10 as K57.9 - Diverticulosis of intestine, part unspecified, without perforation or abscess.
Diverticulitis describes the inflammation of the diverticula within the colon. When these pouches become inflamed, it can lead to complications requiring intense treatment such as intravenous antibiotics, hospitalization, and possibly surgery. In this case, the patient had a history of perforated diverticulitis, which led to the initial colocystomy and eventually required the reversal surgery (colostomy takedown) to restore intestinal function.