I think, there is a solution:
@aostropolets, we can map everything directly and then use the script that splits the concept to its Maps to and Maps to value,
I made an analysis and figured out that descendants of such a concepts have relationships 'Has asso finding' or 'Has asso proc' given by the SNOMED.
4167217 -- Family history of clinical finding
4214956 -- History of clinical finding in subject
4215685 --Past history of procedure
Sometimes they might be not 100% accurate (SNOMED can have more general attribute than said in the text description of the concept), but still it looks like a solution.
4169307 Allergy to substance is a more complicated case.
All its descendants also have 'Has causative agent' links, but these concepts aren't standard and additional work of standard concepts search is required (i.e. analysis of SNOMED - RxNorm mappings)