Query: What was my most recent diagnosis?, FHIR Resource: {'resourceType': 'Procedure', 'status': 'completed', 'category': None, 'code': {'coding': [{'system': 'http://snomed.info/sct', 'code': '306185001', 'display': 'Referral to cardiac surgery service (procedure)'}], 'text': 'Referral to cardiac surgery service (procedure)'}, 'subject': {'reference': 'urn:uuid:3d16fb3a-69a8-a95c-ff67-e4af5af878f8'}, 'performedDateTime': None}