Editing Conversion disorder (section)

{{short description|Former psychiatric diagnosis}}
{{use mdy dates|date=December 2023}}
{{Infobox medical condition
| name = Conversion disorder
| field = [[Psychiatry]], [[Neurology]]
| symptoms = [[Numbness]], [[weakness]], [[movement disorder|movement problems]], [[psychogenic non-epileptic seizure|non-epileptic seizures]], [[tremor]], [[fainting]], [[speech disorder|trouble speaking]], [[deafness|impaired hearing]] and [[blindness|vision]], [[Dysphagia|trouble swallowing]]
| complications = 
| onset = 
| duration = 
| types = 
| risks = Long term [[Psychological stress|stress]]
| diagnosis = 
| differential = 
| prevention = 
| treatment = [[Cognitive behavioral therapy]], [[medication]], [[physical therapy|physical]]/[[occupational therapy]]
| medication = 
| prognosis = 
| frequency = 
| deaths = 
}}
'''Conversion disorder''' ('''CD''') was a formerly diagnosed [[psychiatric disorder]] characterized by abnormal sensory experiences and movement problems during periods of high [[psychological stress]]. Individuals diagnosed with CD presented with highly distressing [[neurological]] symptoms such as [[numbness]], [[blindness]], [[paralysis]], or [[Convulsion|convulsions]], none of which were consistent with a well-established [[Disease|organic cause]] and could be traced back to a [[Trauma trigger|psychological trigger]].<ref>{{Citation |last1=Peeling |first1=Jessica L. |title=Functional Neurologic Disorder |date=2024 |work=StatPearls |url=http://www.ncbi.nlm.nih.gov/books/NBK551567/ |access-date=2024-06-30 |place=Treasure Island (FL) |publisher=StatPearls Publishing |pmid=31855394 |last2=Muzio |first2=Maria Rosaria}}</ref> CD is no longer diagnosed and was superseded by [[functional neurologic disorder]] (FND), a similar diagnosis that notably removed the requirement for a psychological stressor to be present. 

It was thought that these symptoms arise in response to stressful situations affecting a patient's mental health. Individuals diagnosed with conversion disorder have a greater chance of experiencing certain [[psychiatric disorders]] including [[Anxiety disorder|anxiety disorders]], [[Mood disorder|mood disorders]], and [[Personality disorder|personality disorders]] compared to those diagnosed with [[Neurological disorder|neurological disorders]].<ref>{{Citation |last1=Peeling |first1=Jessica L. |title=Functional Neurologic Disorder |date=2024 |work=StatPearls |url=http://www.ncbi.nlm.nih.gov/books/NBK551567/ |access-date=2024-06-30 |place=Treasure Island (FL) |publisher=StatPearls Publishing |pmid=31855394 |last2=Muzio |first2=Maria Rosaria}}</ref> 

Conversion disorder was partly retained in the [[DSM-5-TR]] and [[ICD-11]], but was renamed to [[functional neurological symptom disorder]] (FNsD) and dissociative neurological symptom disorder (DNSD), respectively. FNsD covers a similar range of symptoms found in conversion disorder, but does not include the requirements for a psychological [[stressor]] to be present. The new criteria no longer require feigning to be disproven before diagnosing FNsD. A fifth criterion describing a limitation in sexual functioning that was included in the [[DSM-IV]] was removed in the [[DSM-5]] as well.<ref>Kanaan, R.A.A. (2022).</ref> The ICD-11 classifies DNSD as a [[Dissociative disorders|dissociative disorder]] with unspecified neurological symptoms<!-- there are two references because CD is a synonym of 6B60.Z but the ICD-11's informative content is in 6B60 -->.<ref name="ICD-11 (dissociative neurological symptoms)">[[World Health Organization]] (2023). "{{ICD11|6B60|1069443471}} Dissociative neurological with unspecified symptoms ". ''[[International Classification of Diseases]], eleventh  revision – ICD-11''. Genova – [https://icd.who.int icd.who.int].</ref><ref name="ICD-11 (dissociative neurological symptom disorder with unspecified symptoms)">[[World Health Organization]] (2023). "{{ICD11|6B60.Z}} Dissociative neurological symptom disorder, with unspecified symptoms ". ''[[International Classification of Diseases]], eleventh  revision – ICD-11''. Genova – [https://icd.who.int icd.who.int].</ref>