I’m trying to map oncology specific data sets to the CDM v5.1.0 . Adverse events in the source data are coded using CTCAE v 4.0 . These codes are part of MedDRA (at LLT level) but -in addition - CTCAE also allows a ‘grade’ to be assigned to an adverse event. From what I could see on the forum, SNOMED is mapped to MedDRA at PT level, so I have two questions:
- Is the most sensible approach mapping the corresponding SNOMED code at PT level in concept_id and keep the original LLT code as source value?
- Any suggestions for handling the grade of the AE?