Table 1.

Operation code list

Surgery	Operative name	Behavior code
Colorectal surgery	Hemicolectomy/Ileocecectomy	QA671, Q2671
	Segmental colectomy	QA673, Q2673
	Subtotal/total colectomy	Q1261, Q1262, QA672, Q2672
	Anterior resection	QA921, Q2921
	Low anterior resection	QA922, Q2922, Q2927
	Abdominoperineal resection	QA923, Q2923
	Total proctocolectomy with ileostomy	QA925, Q2925
	Total proctocolectomy with IPAA	QA926, Q2926
	Hartmann’s operation	QA679, Q2679
Small bowel surgery	Resection of small intestine	Q2651, Q2650
	Loop ileostomy	Q2792
	Operation for intestinal obstruction	Q2691, Q2692
Anal surgery	Operation for anal abscess	Q2881, Q2882, Q2883, Q2978,
	Operation for anal fistula	Q2974, Q2975, Q2976, Q2910, Q2977, Q2979

IPAA, ileal-pouch anal anastomosis.