VariableName VariableLabel Type Controlled Terms, Codelist or Format Role Definition Core
STUDYID Study Identifier Char   Identifier Unique identifier for a study. Req
DOMAIN Domain Abbreviation Char DE Identifier Two-character abbreviation for the domain. Req
USUBJID Unique Subject Identifier Char   Identifier Exp
SPDEVID Sponsor Device Identifier Char   Identifier Sponsor-defined identifier for the device. Req
DESEQ Device Events Sequence Number Num   Identifier Sequence Number given to ensure uniqueness of device records within subject records within a domain. Req
DESPID Sponsor-Defined Identifier Char   Identifier Sponsor-defined reference number. Perm
DETERM Reported Term for Device Event Char   Topic Verbatim name of the observed event. Req
DEMODIFY Modified Device Event Name Char   Synonym Qualifier The modified text for DETERM Perm
DEDECOD Device Events Dictionary-Derived Term Char * FDA's Device Problem Codes Synonym Qualifier Dictionary-derived form of the event described in DETERM. Req
DECAT Category of Device Event Char * Grouping Qualifier Used to define a categorization level for events. Perm
DESCAT Subcategory of Device Event Char * Grouping Qualifier Used to define a further category level for events. Perm
DEPRESP Pre-Specified Device Event Char ( NY ) Record Qualifier Used to indicate whether (Y/null) information about a specific event was solicited on the CRF. Perm
DEOCCUR Device Event Char ( NY ) Record When information about specific events is Perm
  Occurrence     Qualifier solicited, DEOCCUR is used to indicate whether or not (Y/N) a particular pre-specified event occurred.  
DESTAT Device Event Collection Status Char (ND) Record Qualifier The status indicates that the pre-specified question was not answered. Perm
DEREASND Reason Device Event Not Collected Char     Reason DESTAT was "not done" Perm
DESEV Device Event Severity Char *   Severity of Event Perm
DEACNDEV Action Taken with Device Char *   Describes Action Taken with respect to the device Perm
VISITNUM Visit Number Num   Timing Clinical encounter number. Exp
VISIT Visit Name Char   Timing Protocol-defined description of clinical encounter. Perm
VISITDY Planned Study Day of Visit Num   Timing Planned study day of the visit based upon RFSTDTC in Demographics. Perm
DEDTC Date of Device Event Data Collection Char ISO 8601 Timing Date the device event information was collected. Perm
DESTDTC Start Date/Time of Device Event Char ISO 8601 Timing Start date/time of the device event. Perm
DEENDTC End Date/Time of Device Event Char ISO 8601 Timing End date/time of the device event. Perm
DEDY Study Day of Device Event Data Collection Num   Timing Study day of Device Event observation, measured as integer days. Perm
DESTDY Study Day of Device Event Start Date/Time Num   Timing Study day of start of Device Event, measured as integer days. Perm
DEENDY Study Day of Device Event End Date/Time Num   Timing Study day of end of Device Event, measured as integer days. Perm