HB 5463 updates Texas’ emergency detention and involuntary mental health commitment procedures. The bill expands the definition of substantial risk of serious harm to include severe emotional distress and deterioration that prevents a person from recognizing their symptoms or making rational treatment decisions. It also modifies the notification process for emergency detentions, clarifies physician documentation requirements, and strengthens judicial standards for court-ordered inpatient mental health treatment. These changes aim to enhance due process while ensuring individuals receive necessary care​.