<unk>  (CD), or functional neurologic symptom<unk> , is a diagnostic category used in some psychiatric classification systems. It is sometimes applied to patients who present with neurological symptoms, such as numbness, blindness, paralysis, or fits, which are not consistent with a well-established organic cause, which cause significant distress, and can be traced back to a psychological trigger. It is thought that these symptoms arise in response to stressful situations affecting a patient's mental health or an ongoing mental health condition such as depression.<unk>  was retained in DSM-5, but given the subtitle functional neurological symptom<unk> . The new criteria cover the same range of symptoms, but remove the requirements for a psychological stressor to be present and for feigning to be disproved. ICD-10 classifies<unk>  as a dissociative<unk>  while DSM-IV classifies it as a somatoform<unk> .
Conversion disorder
Somatization disorder
Otodental syndrome
Malingering
Bruxism
Anterior cerebral artery syndrome
Perisylvian syndrome
Diencephalic syndrome