Index 935
substance/medication-induced obsessive-
compulsive and related disorder, 235, 
236, 257–260
trichotillomania (hair-pulling disorder), 235, 
236, 251–254
unspecified obsessive-compulsive and related 
disorder, 235, 236
Obstructive sleep apnea hypopnea, 378–383
associated features supporting diagnosis of, 
379
comorbidity with, 383
culture-related diagnostic issues in, 381
development and course of, 379–380
diagnostic criteria for, 378
diagnostic features of, 379
diagnostic markers for, 381
differential diagnosis of, 381–383
functional consequences of, 381
gender-related diagnostic issues in, 381
prevalence of, 379
relationship to International Classification of 
Sleep Disorders, 383
risk and prognostic factors for, 380–381
specifiers for, 378–379
Occupational problems, 723
OCD. See Obsessive-compulsive disorder
Olfactory reference syndrome, 246, 264, 837
Online enhancements, 17
Opioid intoxication, 546–547
diagnostic criteria for, 546–547
diagnostic features of, 547
differential diagnosis of, 547
specifiers for, 547
Opioid-related disorders, 481, 540–550
diagnoses associated with, 482
opioid intoxication, 546–547
opioid use disorder, 541–546
opioid withdrawal, 484, 547–549
other opioid-induced disorders, 549
unspecified opioid-related disorder, 550
Opioid use disorder, 541–546
associated features supporting diagnosis of, 543
comorbidity with, 546