Diagnosis of OCPD Clinical criteria (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition [DSM-5]) For a diagnosis of obsessive-compulsive personality disorder, patients must have A persistent pattern of preoccupation with order; perfectionism; and control of self, others, and situations This pattern is shown by the presence of ≥ 4 of the following: Preoccupation with details, rules, schedules, organization, and lists A striving to do something perfectly that interferes with completion of the task Excessive devotion to work and productivity (not due to financial necessity), resulting in neglect of leisure activities and friends Excessive conscientiousness, fastidiousness, and inflexibility regarding ethical and moral issues and values Unwillingness to throw out worn-out or worthless objects, even those with no sentimental value Reluctance to delegate or work with other people unless those people agree to do things exactly as the patients want A miserly approach to spending for themselves and others because they see money as something to be saved for future disasters Rigidity and stubbornness Also, symptoms must have begun by early adulthood.