autoimmune disorder of the nervous system idiopathic disease pediatric acute-onset neuropsychiatric syndrome https://github.com/monarch-initiative/mondo/issues/9607 UMLS:C5197301 PANS MONDO:1060178 MEDGEN:1673298 An autoimmune disorder that involves a constellation of psychiatric and neurologic symptoms that present simultaneously and in rapid onset, the cause or causes of which are unknown. Although the cause is still under investigation, the manifestations may follow a recent infection. GARD:0028179