Check out this debate-style article on the validity of the oppositional defiant disorder diagnosis. Spoiler alert: the answer is in the title!
Burke, J. D., Evans, S. C., & Carlson, G. A. (2022). Oppositional defiant disorder is a real disorder. Child and Adolescent Mental Health, 27(3), 297-299. https://doi.org/10.1111/camh.12588