Table 1.

Comprehensive SR IOD Definition (Table A.35.3-1²)

IE	Module	Reference	Usage
Patient	Patient	C.7.1.1	M
	Specimen identification	C.7.1.2	C–Required if the observation subject is a specimen
	Clinical trial subject	C.7.1.3	U
Study	General study	C.7.2.1	M
	Patient study	C.7.2.2	U
	Clinical trial study	C.7.2.3	U
Series	SR document series	C.17.1	M
	Clinical trial series	C.7.3.2	U
Equipment	General equipment	C.7.5.1	M
Document	SR document general	C.17.2	M
	SR document content	C.17.3	M
	SOP common	C.12.1	M

C = conditional; IE = information entity; IOD = information object definition; M = mandatory; SOP = service-object pair; SR = structured reporting; U = user option.