C-Reactive Protein, Lab Results

The modified concept set includes c-reactive protein tests. It's unclear how the concept set was developed (note that "C reactive protein" was not simply searched under concept_name, as the codeset is more narrowly defined.) This concept set is limited to LOINC and SNOMED codes. This concept set appears to have been used in a RECOVER publication, "Changes in Treatment and Severity of Multisystem Inflammatory Syndrome in Children: An EHR-based cohort study from the RECOVER program." The paper examines changes over the COVID era in abnormal laboratory measurements for patients diagnosed with MIS-C. It's unclear why this concept set was used for this purpose, rather than the original concept set.