If you live in Illinois, then you are lucky.  It's not because of the Cubs. However, if your child has Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcal Infections (PANDAS) and Pediatric Autoimmune Neuropsychiatric (PAN), then you are indeed very lucky. That's because Illinois passed "Charlie's Law" in July of 2017.  This made it mandatory for all insurance companies in the state to provide coverage for IVIg infusion therapy for PANDAS/PANS patients