This study investigated perceived coercion among patients with SUD that were admitted either involuntarily or voluntarily to receive inpatient hospital treatment. The VA group showed significantly higher scores than the IA group on the internal sources of perceived coercion (Self subscale). No individual characteristics or independent variables were identified that affected perceived coercion in any clinically significant magnitude. Despite the different legal statuses of these groups upon admission to the hospital, the IA group did not report more perceived coercion, overall.