Intestinal complications in patients with Crohn’s disease in the Brazilian public healthcare system between 2011 and 2020

Table 3 Description of the most common intestinal complications reported as associated disease or procedure predefined in general population with Crohn’s disease (n = 16809)

Associated disease (ICD-10–related complications)	Description	Number of patients with ICs associated diseases (n = 4162)	Percentage (%)
K603	Anal fistula	1270	31
K610	Anal abscess	835	20
R100	Acute abdomen	422	10
K612	Anorectal abscess	406	10
K635	Polyp of colon	401	10
K629	Disease of anus and rectum, unspecified	350	8
K632	Fistula of intestine	267	6
K631	Perforation of intestine (nontraumatic)	251	6
K602	Anal fissure, unspecified	229	6
K601	Chronic anal fissure	174	4
Procedure-related ICs		Number of patients with procedure-related ICs (n = 2706)
407020276	Fistulotomy	1308	48
407020136	Anorectal abscess drainage	785	29
407020217	Internal sphincterotomy	350	13
407020179	Enterectomy	129	5
407020144	Ischiorectal abscess drainage	110	4
407020403	Retossigmoidectomy	105	4
407020209	Enterotomy	92	3
407020101	Colostomy	89	3
407020390	Body removed – rectum or colon polyps	83	3
407020225	Excision of anorectal tumor	78	3

Enterectomy is a surgical procedure (incision) performed to remove a part of the intestine (either small or large). CD: Crohn’s disease; ICs: Intestinal complications; ICD-10: International classification of diseases – 10^th revision.