Table 1.

Los Angeles classification for erosive esophagitis

Grade	Definition
A	≥1 mucosal breaks ≤5 mm long, none of which extends between the tops of the mucosal folds
B	≥1 mucosal breaks >5 mm long, none of which extends between the tops of mucosal folds
C	Mucosal breaks that extend between the tops of ≥2 mucosal folds, but which involve <75 % of the esophageal circumference
D	Mucosal breaks which involve ≥75 % of the esophageal circumference