I tried to locate the code related to building the concept_relationship table for SMQs, but could not see it on
github.com:OHDSI/Vocabulary-v5.0. I am trying to understand why some SMQ entries have ‘Subsumes’ and ‘Is a’ relationship_ids, while others do not.
(Ignoring ‘MedDRA - SMQ’ and ‘SMQ - MedDRA’ relationship_ids)
EG: 38000004 Cardiac failure (narrow): has neither Subsumes or Is a 38000005 Hepatic disorders : has Subsumes only 38000008 Liver related investigations, signs and symptoms (narrow): has both Subsumes and Is a.