Does NSDUH collect data on people who have been denied treatment?

NSDUH does not currently collect data on people denied treatment. For people who felt that they needed substance abuse treatment but did not get it, 2023 detailed table 5.35 shows the reasons that people indicated they did not receive treatment. Additionally, 2023 detailed tables 6.34-6.36 show the reasons that adults did not receive mental health treatment among those who perceived that they needed it.