In preparing a list of standardized CONDITION_CONCEPT_IDs for chronic non-end-stage liver disease, I decided to see whether using pre-existing concept sets from ATLAS might save me from re-inventing the wheel. (Is this an appropriate usage?)
So, I selected a bunch of sets that sounded promising and downloaded them. Looking through the concept codes listed, I was surprised by how many seemed irrelevant. A look at the ConceptSetExpression table from my download provided an explanation for some.
It appears that there might be some mis-labeling involved.
conceptSetExpressionX.pdf (178.7 KB)