About 30% patients with chronic idiopathic urticaria (CIU) have circulating histamine-releasing autoantibodies against the α-subunit of high affinity IgL receptor (Fc€RIα), or IgE. This suggroup of patients has a disorder commonly referred as autoimmune urticaria. This study was conducted to reveral the autoimmune urticaria cases in Indonesia patients. The autologous serum skin test (ASST) …