DUAL DIAGNOSIS By N., Pam M.S. - April 7, 2013 Identifying 2 distict disoreders present at the same time. See comorbidity. DUAL DIAGNOSIS: "Joe had a dual diagnosis of depression and substance abuse." Related Psychology Terms DUAL THRESHOLDS DIFFERENTIAL DIAGNOSIS ATTENDANCE RECESSIVE ALLELE GROUP G MONOSOMY ADRENAL-CORTICAL HYPERFUNCTION PANUM'S FUSIONAL AREA BORDERLINE STATE SHOWUP WESTERN BLOT Cite this page: N., Pam M.S., "DUAL DIAGNOSIS," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/dual-diagnosis/ (accessed March 24, 2019).