Database
[{_id:"d283015f-91e9-4404-9202-093c28d6a932",referencedGeneralPractitioner:[{resourceType:"practitioner",cachedIdentifier:[{system:{value:"urn:oid:1.3.6.1.4.1.19126.3"},value:{value:"test"}},{value:{value:"14277399B"},system:{value:"test"}}]}]}]
Query
db.collection.find({"referencedGeneralPractitioner":{"$elemMatch":{"cachedIdentifier.value.value":"14277399B","cachedIdentifier.system.value":"urn:oid:1.3.6.1.4.1.19126.3"}}})