Slot: index_timepoint

The text term used to describe the reference or anchor date used for date obfuscation, where a single date is obscured by creating one or more date ranges in relation to this date.

CodeableConcept Binding: This property has a Range of CodeableConcept. One of the Codings in this CodeableConcept instance should be populated with values from enum_CRDCH_ResearchSubject_index_timepoint.

URI: crdch:researchSubject__index_timepoint

Domain and Range

ResearchSubject → _0..1 CodeableConcept

Parents

Children

Used by

• ResearchSubject

Other properties

Examples:		Diagnosis
		First Patient Visit
		First Treatment
Direct Mappings:		GDC:Case.index_date
		PDC:Case.index_date