TABLE 2.

Diagnoses of motility disorders according to the Chicago Classification version 3.0 (CCv3.0) and version 4.0 (CCv4.0)

		CC v4.0
		Achalasia type I	Achalasia type II	Achalasia type III	EGJ outflow obstruction	Absent contraction	Distal Esophageal Spasm	IEM	Normal	Total
CC v3.0	Achalasia I	2	0	0	0	0	0	0	0	2
	Achalasia II	0	2	0	0	0	0	0	0	2
	Achalasia III	0	0	0	2	0	0	0	0	2
	EGJ outflow obstruction	0	0	0	1	0	0	1	1	3
	Absent contraction	0	0	0	0	6	0	0	0	6
	Distal Esophageal Spasm	0	0	0	0	0	1	0	0	1
	IEM	0	0	0	0	0	0	39	24	63
	Normal	0	0	0	0	0	0	0	51	51
	Total	2	2	0	3	6	1	40	76	130

Note: Discordances between the two classifications are highlighted in dark gray.

Bold values correspond to unchanged diagnosis with CCv3.0 and CCv4.0.

Abbreviations: EGJ, esophago‐gastric junction; IEM, ineffective esophageal motility.