If data are in scope for a domain dataset defined in this guide, but not all data can be represented using the domain variables, then data may be represented using variables from the SDTM or in a related supplemental dataset.
How to Create New Data Collection Fields When No CDASHIG Field Has Been Defined
Collection metadata can be extended when new data collection fields
The naming conventions and other variable creation recommendations in CDASHIG are designed to allow collection of data regardless of subsequent inclusion in the SDTM, as well as to consistently facilitate transforming the collected data into submission datasets.
Prior to adding any new fields to a sponsor's study CRF, the CDASH Model should be reviewed to see if there is a root field that will work for the data collection need.
New data collection fields (not already defined in the CDASH Model) will fall under 1 of following categories.