This is the ValueSet that contains all the codes in To Be Determined Value Set (http://hl7.org/fhir/uv/genomics-reporting/ValueSet/tbd-codes-vs) and To Be Determined Value Set (http://hl7.org/fhir/uv/genomics-reporting/ValueSet/tbd-codes-vs). E.g. what you have to deal with if you get resources containing codes in either of them