Version Domain Sequence Variable Label Type Controlled Terminology or Format Role CDISC Notes Core
SDTMIG 3.3 RELREC 1 STUDYID Study Identifier Char Identifier Unique identifier for a study. Req
SDTMIG 3.3 RELREC 2 RDOMAIN Related Domain Abbreviation Char (DOMAIN) Identifier Abbreviation for the domain of the parent record(s). Req
SDTMIG 3.3 RELREC 3 USUBJID Unique Subject Identifier Char Identifier Identifier used to uniquely identify a subject across all studies for all applications or submissions involving the product. Exp
SDTMIG 3.3 RELREC 4 IDVAR Identifying Variable Char Identifier Name of the identifying variable in the general-observation-class dataset that identifies the related record(s). Examples include --SEQ and --GRPID. Req
SDTMIG 3.3 RELREC 5 IDVARVAL Identifying Variable Value Char Identifier Value of identifying variable described in IDVAR. If --SEQ is the variable being used to describe this record, then the value of --SEQ would be entered here. Exp
SDTMIG 3.3 RELREC 6 RELTYPE Relationship Type Char (RELTYPE) Record Qualifier Identifies the hierarchical level of the records in the relationship. Values should be either ONE or MANY. Used only when identifying a relationship between datasets (as described in Section 8.3, Relating Datasets). Exp
SDTMIG 3.3 RELREC 7 RELID Relationship Identifier Char Record Qualifier Unique value within USUBJID that identifies the relationship. All records for the same USUBJID that have the same RELID are considered "related/associated." RELID can be any value the sponsor chooses, and is only meaningful within the RELREC dataset to identify the related/associated Domain records. Req