TennCare - As enacted, enacts "Lucca's Law," which addresses TennCare coverage of treatment for pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) and pediatric acute-onset neuropsychiatric syndrome (PANS). - Amends TCA Title 8; Title 56 and Title 71.

HB 411, known as "Lucca's Law," requires Tennessee's TennCare program to cover medically necessary treatments for children with PANDAS (pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections) and PANS (pediatric acute-onset neuropsychiatric syndrome). It mandates that all TennCare-managed care organizations (MCOs) provide coverage for specific treatments - including antibiotics, behavioral therapy, immunomodulating medicines, plasma exchange, and IVIG therapy - without higher co-pays or delays, and prohibits denial based on prior treatment or diagnosis changes. The law also requires MCOs to use "autoimmune encephalitis" coding for billing until specific PANDAS/PANS codes are established. This directly affects pediatric patients with these conditions and their families, ensuring consistent access to covered care under TennCare.