Somatic symptom disorder

Short description: Category of mental disorder

Somatic symptom disorder

Specialty| Psychiatry, Psychology

A somatic symptom disorder, formerly known as a somatoform disorder,[1][2][3] is any mental disorder that manifests as physical symptoms that suggest illness or injury, but cannot be explained fully by a general medical condition or by the direct effect of a substance, and are not attributable to another mental disorder (e.g., panic disorder).[4] Somatic symptom disorders, as a group, are included in a number of diagnostic schemes of mental illness, including the Diagnostic and Statistical Manual of Mental Disorders. (Before DSM-5 this disorder was split into somatization disorder and undifferentiated somatoform disorder.)

In people who have been diagnosed with a somatic symptom disorder, medical test results are either normal or do not explain the person's symptoms, and history and physical examination do not indicate the presence of a known medical condition that could cause them, though the DSM-5 cautions that this alone is not sufficient for diagnosis.[1] The patient must also be excessively worried about their symptoms, and this worry must be judged to be out of proportion to the severity of the physical complaints themselves.[5] A diagnosis of somatic symptom disorder requires that the subject have recurring somatic complaints for at least six months.[6]

Symptoms are sometimes similar to those of other illnesses and may last for years. Usually, the symptoms begin appearing during adolescence, and patients are diagnosed before the age of 30 years.[7] Symptoms may occur across cultures and gender.[6] Other common symptoms include anxiety and depression.[6] However, since anxiety and depression are also very common in persons with confirmed medical illnesses,[8] it remains unproven whether such symptoms are a consequence of the physical impairment or a cause. Somatic symptom disorders are not the result of conscious malingering (fabricating or exaggerating symptoms for secondary motives) or factitious disorders (deliberately producing, feigning, or exaggerating symptoms).[9] Somatic symptom disorder is difficult to diagnose and treat. Some advocates of the diagnosis believe this is because proper diagnosis and treatment requires psychiatrists to work with neurologists on patients with this disorder.[6]

## Contents

* 1 History
* 2 Definition
* 2.1 Diagnostic and Statistical Manual of Mental Disorders
* 2.2 International Statistical Classification of Diseases and Related Health Problems
* 3 Treatment
* 4 Controversy
* 4.1 Misdiagnosis
* 5 See also
* 6 References

## History

Somitisation disorder was first described by Paul Briquet in 1859 and was subsequently known as Briquet's syndrome. He described patients who had been sickly most of their lives and complained of multiple symptoms from different organ systems. Symptoms persist despite multiple consultations, hospitalisations and investigations.[10]

## Definition

Somatic symptom disorders are a group of disorders, all of which fit the definition of physical symptoms similar to those observed in physical disease or injury for which there is no identifiable physical cause. As such, they are a diagnosis of exclusion. Somatic symptoms may be generalized in four major medical categories: neurological, cardiac, pain, and gastrointestinal somatic symptoms.[11]

### Diagnostic and Statistical Manual of Mental Disorders

Somatic symptom disorders used to be recognized as Somatoform disorders in the Diagnostic and Statistical Manual of Mental Disorders of the American Psychiatric Association. The following[12] were conditions under the term Somatoform Disorders:

* Conversion disorder: A somatic symptom disorder involving the actual loss of bodily function such as blindness, paralysis, and numbness due to excessive anxiety
* Somatization disorder
* Hypochondriasis
* Body dysmorphic disorder: wherein the afflicted individual is concerned with body image, and the disorder is manifested as excessive concern about and preoccupation with a perceived defect of their physical appearance.
* Pain disorder
* Undifferentiated somatic symptom disorder – only one unexplained symptom is required for at least six months.

In the newest version of DSM-5 (2013) somatic symptom disorders are recognized under the term somatic symptom and related disorders:

* Somatic symptom disorder: Will take over many of what was formerly known as somatization disorders and hypochondriasis (hypochondria).
* Factitious disorder: Can be either imposed on oneself, or to someone else (formally known as factitious disorder by proxy).
* Illness anxiety disorder: A somatic symptom disorder involving persistent and excessive worry about developing a serious illness. This disorder has recently gone under review and has been altered into three different classifications.[citation needed]
* Somatoform disorder not otherwise specified (NOS)[13]

Included among these disorders are false pregnancy, psychogenic urinary retention, and mass psychogenic illness (so-called mass hysteria).

Somatization disorder as a mental disorder was recognized in the DSM-IV-TR classification system, but in the latest version DSM-5, it was combined with undifferentiated somatoform disorder to become somatic symptom disorder, a diagnosis which no longer requires a specific number of somatic symptoms.[14]

### International Statistical Classification of Diseases and Related Health Problems

The ICD-10, the latest version of the International Statistical Classification of Diseases and Related Health Problems, classifies conversion disorder as a dissociative disorder. ICD-10 still includes somatization syndrome.[15]

## Treatment

Psychotherapy, more specifically, cognitive behavioral therapy (CBT), is the most widely used form of treatment for somatic symptom disorder. In 2016, a randomized 12-week study suggested steady and significant improvement in health anxiety measures with cognitive behavioral therapy compared to the control group.[16][17]

CBT can help in some of the following ways:[18]

* Learn to reduce stress
* Learn to cope with physical symptoms
* Learn to deal with depression and other psychological issues
* Improve quality of life
* Reduce preoccupation with symptom

Moreover, brief psychodynamic interpersonal psychotherapy (PIT) for patients with multisomatoform disorder has shown its long-term efficacy for improving the physical quality of life in patients with multiple, difficult-to-treat, medically unexplained symptoms.[19]

Antidepressant medication has also been used to treat some of the symptoms of depression and anxiety that are common among people who have somatic symptom disorder.[18] Medications will not cure somatic symptom disorder, but can help the treatment process when combined with CBT.

## Controversy

Somatic symptom disorder has been a controversial diagnosis, since it was historically based primarily on negative criteria; that is, the absence of a medical explanation for the presenting physical complaints. Consequently, any person suffering from a poorly understood illness can potentially fulfill the criteria for this psychiatric diagnosis, even if they exhibit no psychiatric symptoms in the conventional sense.[20][21]

### Misdiagnosis

In the opinion of Allen Frances, chair of the DSM-IV task force, the DSM-5's somatic symptom disorder brings with it a risk of mislabeling a sizable proportion of the population as mentally ill. “Millions of people could be mislabeled, with the burden falling disproportionately on women, because they are more likely to be casually dismissed as ‘catastrophizers’ when presenting with physical symptoms.”[21]

## See also

* Hypochondriasis
* Hysteria
* Medically unexplained physical symptoms
* Munchausen syndrome
* Nocebo
* Psychosomatic medicine

## References

1. ↑ 1.0 1.1 (2013) "Somatic Symptom Disorder Fact Sheet " dsm5.org. Retrieved April 8, 2014.
2. ↑ "DSM-5 redefines hypochondriasis " mayoclinic.org. Retrieved April 8, 2014.
3. ↑ "Somatic Symptom and Related Disorders" psychiatryonline.org. Retrieved April 8, 2014.
4. ↑ American Psychiatric Association. Task Force on DSM-IV (2000). Diagnostic and statistical manual of mental disorders: DSM-IV-TR. American Psychiatric Pub. p. 485. ISBN 978-0-89042-025-6.
5. ↑ "Somatoform disorders". American Family Physician 76 (9): 1333–8. November 2007. PMID 18019877. http://www.aafp.org/link_out?pmid=18019877.
6. ↑ 6.0 6.1 6.2 6.3 Kroenke K et al. (1997). "Multisomatoform disorder. An alternative to undifferentiated somatoform disorder for the somatizing patient in primary care". Arch. Gen. Psychiatry 54 (4): 352–8. doi:10.1001/archpsyc.1997.01830160080011. PMID 9107152.
7. ↑ LaFrance WC (July 2009). "Somatoform disorders". Seminars in Neurology 29 (3): 234–46. doi:10.1055/s-0029-1223875. PMID 19551600.
8. ↑ Cassem, Edwin H. (March 1995). "Depressive Disorders in the Medically Ill". Psychosomatics 36 (2): S2–S10. doi:10.1016/S0033-3182(95)71698-X. PMID 7724710.
9. ↑ Skumin, V. A. (1991). (in ru)Zhurnal Nevropatologii I Psikhiatrii Imeni S.s. Korsakova (Moscow, Russia : 1952) (Moscow: Zhurnal nevropatologii i psikhiatrii imeni S.S. Korsakova) 91 (8): 81–814. OCLC 117464823. https://www.mendeley.com/research/borderline-mental-disorders-chronic-diseases-digestive-system-children-adolescents/. Retrieved 18 January 2015.
10. ↑ "Briquet's Syndrome (somatization disorder, DSM-IV- TR #300.81)". https://www.brown.edu/Courses/BI_278/Other/Clerkship/Didactics/Readings/Somatization.pdf.
11. ↑ Williams, Sara E.; Zahka, Nicole E. (2017). Treating Somatic Symptoms in Children and Adolescents (Guilford Child and Adolescent Practitioner Series). 370 Seventh Avenue, Suite 1200, New York, NY 10001: The Guilford Press. pp. 18–21. ISBN 9781462529520.
12. ↑ American Psychiatric Association. Task Force on DSM-IV (2000). Diagnostic and statistical manual of mental disorders: DSM-IV-TR. American Psychiatric Pub. p. 485. ISBN 978-0-89042-025-6.
13. ↑ Hales, Robert E; Yudofsky, Stuart C (2004). Essentials of Clinical Psychiatry. American Psychiatric Pub.. p. 444. ISBN 9781585620333. https://archive.org/details/essentialsofclin0000hale. "Somatoform disorder Not otherwise specified."
14. ↑ "Highlights of Changes from DSM-IV-TR to DSM-5". American Psychiatric Association. May 17, 2013. http://www.psychiatry.org/File Library/Practice/DSM/DSM-5/Changes-from-DSM-IV-TR--to-DSM-5.pdf.
15. ↑ "ICD-10 Version:2015". http://apps.who.int/classifications/icd10/browse/2015/en#/F45.0.
16. ↑ Hedman, Erik; Axelsson, Erland; Andersson, Erik; Lekander, Mats; Ljótsson, Brjánn (2016-11-01). "Exposure-based cognitive-behavioural therapy via the internet and as bibliotherapy for somatic symptom disorder and illness anxiety disorder: randomised controlled trial". The British Journal of Psychiatry 209 (5): 407–413. doi:10.1192/bjp.bp.116.181396. ISSN 1472-1465. PMID 27491531.
17. ↑ N, van Dessel; M, den Boeft; Jc, van der Wouden; M, Kleinstäuber; Ss, Leone; B, Terluin; Me, Numans; He, van der Horst et al. (2014-11-01). "Non-pharmacological Interventions for Somatoform Disorders and Medically Unexplained Physical Symptoms (MUPS) in Adults" (in en). The Cochrane Database of Systematic Reviews (11): CD011142. doi:10.1002/14651858.CD011142.pub2. PMID 25362239.
18. ↑ 18.0 18.1 "Somatic symptom disorder Treatments and drugs - Mayo Clinic" (in en). Mayo Clinic. http://www.mayoclinic.org/diseases-conditions/somatic-symptom-disorder/basics/treatment/con-20124065.
19. ↑ Sattel H, Lahmann C, Gundel H, Guthrie E, Kruse J, Noll-Hussong M, Ohmann C, Ronel J, Sack M, Sauer N, Schneider G, Henningsen P. Brief psychodynamic interpersonal psychotherapy for patients with multisomatoform disorder: randomised controlled trial. The British Journal of Psychiatry. 2012;200(1):60-7.
20. ↑ Morrison, J. (2014). DSM-5® made easy: The clinician's guide to diagnosis. New York: Guildford Press.
21. ↑ 21.0 21.1 Frances A (2013). "The new somatic symptom disorder in DSM-5 risks mislabeling many people as mentally ill". BMJ 346: f1580. doi:10.1136/bmj.f1580. PMID 23511949.

Classification|

* ICD-10: F45
* ICD-9-CM: 300.8
* MeSH: D013001
* DiseasesDB: 1645

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External resources|

* eMedicine: med/3527

* v
* t
* e

Mental and behavioral disorders (F00–F99 & 290–319)

Adult personality and behavior

| Gender dysphoria|

* Ego-dystonic sexual orientation
* Paraphilia
* Fetishism
* Voyeurism
* Sexual maturation disorder
* Sexual relationship disorder

|

Other|

* Factitious disorder
* Munchausen syndrome
* Impulse control disorder
* Dermatillomania
* Kleptomania
* Pyromania
* Trichotillomania
* Personality disorder

Childhood and learning

| Emotional and behavioral|

* ADHD
* Conduct disorder
* ODD
* Emotional and behavioral disorders
* Separation anxiety disorder
* Movement disorders
* Stereotypic
* Social functioning
* DAD
* RAD
* Selective mutism
* Speech
* Stuttering
* Cluttering
* Tic disorder
* Tourette syndrome

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Intellectual disability|

* X-linked intellectual disability
* Lujan–Fryns syndrome

Psychological development
(developmental disabilities)|

* Pervasive
* Specific

Mood (affective)

* Bipolar
* Bipolar I
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* Cyclothymia
* Depression
* Atypical depression
* Dysthymia
* Major depressive disorder
* Melancholic depression
* Seasonal affective disorder
* Mania

Neurological and symptomatic

| Autism spectrum|

* Autism
* Asperger syndrome
* High-functioning autism
* PDD-NOS
* Savant syndrome

|

Dementia|

* AIDS dementia complex
* Alzheimer's disease
* Creutzfeldt–Jakob disease
* Frontotemporal dementia
* Huntington's disease
* Mild cognitive impairment
* Parkinson's disease
* Pick's disease
* Sundowning
* Vascular dementia
* Wandering

Other|

* Delirium
* Organic brain syndrome
* Post-concussion syndrome

Neurotic, stress-related and somatoform

| Adjustment|

* Adjustment disorder with depressed mood

|

Anxiety|

| Phobia|

* Agoraphobia
* Social anxiety
* Social phobia
* Anthropophobia
* Specific social phobia
* Specific phobia
* Claustrophobia

|

Other|

* Generalized anxiety disorder
* OCD
* Panic attack
* Panic disorder
* Stress
* Acute stress reaction
* PTSD

Dissociative|

* Depersonalization disorder
* Dissociative identity disorder
* Fugue state
* Psychogenic amnesia

Somatic symptom|

* Body dysmorphic disorder
* Conversion disorder
* Ganser syndrome
* Globus pharyngis
* Da Costa's syndrome
* Hypochondriasis
* Mass psychogenic illness
* Neurasthenia
* Nosophobia
* Psychalgia
* Somatization disorder

Physiological and physical behavior

| Eating|

* Anorexia nervosa
* Bulimia nervosa
* Rumination syndrome
* Other specified feeding or eating disorder

|

Nonorganic
sleep|

* Hypersomnia
* Insomnia
* Parasomnia
* Night terror
* Nightmare
* REM sleep behavior disorder

Postnatal|

* Postpartum depression
* Postpartum psychosis

Sexual dysfunction|

| Arousal|

* Erectile dysfunction
* Female sexual arousal disorder

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Desire|

* Hypersexuality
* Hypoactive sexual desire disorder

Orgasm|

* Anorgasmia
* Delayed ejaculation
* Premature ejaculation
* Sexual anhedonia

Pain|

* Nonorganic dyspareunia
* Nonorganic vaginismus

Psychoactive substances, substance abuse and substance-related

* Drug overdose
* Intoxication
* Physical dependence
* Rebound effect
* Stimulant psychosis
* Substance dependence
* Withdrawal

Schizophrenia, schizotypal and delusional

| Delusional|

* Delusional disorder
* Folie à deux

|

Psychosis and
schizophrenia-like|

* Brief reactive psychosis
* Schizoaffective disorder
* Schizophreniform disorder

Schizophrenia|

* Childhood schizophrenia
* Disorganized (hebephrenic) schizophrenia
* Paranoid schizophrenia
* Pseudoneurotic schizophrenia
* Simple-type schizophrenia

Symptoms and uncategorized

* Catatonia
* False pregnancy
* Intermittent explosive disorder
* Klüver–Bucy syndrome
* Psychogenic non-epileptic seizures
* Psychomotor agitation
* Stereotypy

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