Table 2.

Simple Endoscopic Score for CD (SES-CD)^a

		Ileum	Right Colon	Transverse Colon	Left Colon	Rectum	Total
Size of ulcers (diameter)	0 = Absent 1 = Aphthous ulcers, 0.1–0.5 cm 2 = Large ulcers, 0.5–2 cm 3 = Very large ulcers, >2 cm
Ulcerated surface	0 = none 1 = <10% of the segment 2 = 10–30% of the segment 3 = >30% of the segment
Affected surface	0 = none 1 = <50% of the segment 2 = 50–75% of the segment 3 = >75% of the segment
Presence of narrowings	0 = none 1 = Single, passable by scope 2 = Multiple, passable by scope 3 = Not passable, frank stenosis

Notes: In the majority of studies, CD severity is defined as inactive when SES-CD was 0–2; mild when 3–6; moderate 7–15; and severe >16.42 aData from Daperno M, D’Haens G, Van Assche G, et al. Development and validation of a new, simplified endoscopic activity score for Crohn’s disease: the SES-CD. Gastrointest Endosc. 2004;60(4):505–12.40 =, equals; <, less than; >, greater than.