Henoch-Schonlein Purpura, Diagnosed

This diagnosis concept set includes diagnoses mentioning Henoch-Schonlein purpura (HSP), also known as Immunoglobulin vasculitis (IgAV) to identify patients with HSP. The code list was generated by searching for all mentions of HSP in the concept_name. This concept set is limited to SNOMED diagnosis codes and only codes that mentioned HSP. None of the SNOMED descendants were included (Acute hemorrhagic edema of childhood, Postinfective immunoglobulin A vasculitis).