This is the ValueSet that contains all the codes in Audit Event Subtype for De-Identification (https://profiles.ihe.net/ITI/DeId/ValueSet/IHE.BasicAudit.DeIdentification.Subtype) and Audit Event Subtype for De-Identification (https://profiles.ihe.net/ITI/DeId/ValueSet/IHE.BasicAudit.DeIdentification.Subtype). E.g. what you have to deal with if you get resources containing codes in either of them