Editing Hypochondriasis (section)

===Classification===
The classification of hypochondriasis in relation to other psychiatric disorders has long been a topic of scholarly debate and has differed widely between different diagnostic systems and influential publications.<ref name=":1">{{Cite journal |last1=Scarella |first1=Timothy M. |last2=Laferton |first2=Johannes A. C. |last3=Ahern |first3=David K. |last4=Fallon |first4=Brian A. |last5=Barsky |first5=Arthur |date=2016-03-01 |title=The Relationship of Hypochondriasis to Anxiety, Depressive, and Somatoform Disorders |journal=Psychosomatics |volume=57 |issue=2 |pages=200–207 |doi=10.1016/j.psym.2015.10.006 |pmid=26785798 |pmc=4792743 |issn=0033-3182}}</ref>

In the case of the DSM, the first and second versions listed hypochondriasis as a neurosis, whereas the third and fourth versions listed hypochondriasis as a somatoform disorder. The current version of the DSM (DSM-5) lists somatic symptom disorder (SSD) under the heading of "somatic symptom and related disorders", and illness anxiety disorder (IAD) under both this heading and as an anxiety disorder.<ref name=":1" />

The ICD-10, like the third and fourth versions of the DSM, lists hypochondriasis as a somatoform disorder.<ref>{{Cite journal |last1=Pavithra |first1=N. |last2=Dahale |first2=Ajit Bhalchandra |last3=Desai |first3=Geetha |last4=Chaturvedi |first4=Santosh Kumar |date=2019 |title=Hypochondriasis: Clinical Profile in a Tertiary Care Psychiatry and Neurosciences Hospital in Southern India – A Retrospective Chart Review |journal=Indian Journal of Psychological Medicine |volume=41 |issue=2 |pages=178–181 |doi=10.4103/IJPSYM.IJPSYM_177_18 |doi-access=free |issn=0253-7176 |pmc=6436408 |pmid=30983668}}</ref> The ICD-11, however, lists hypochondriasis under the heading of "obsessive-compulsive or related disorders".<ref>{{Cite web |title=ICD-11 for Mortality and Morbidity Statistics |url=https://icd.who.int/browse11/l-m/en#/http://id.who.int/icd/entity/1321276661 |access-date=2023-12-30 |website=icd.who.int}}</ref>

There are also numerous influential scientific publications that have argued for other classifications of hypochondriasis. Notably, since the early 1990s, it has become increasingly common to regard hypochondriasis as an anxiety disorder, and to refer to the condition as "health anxiety" or "health related obsessive-compulsive disorder."<ref>{{Cite journal |last1=Axelsson |first1=Erland |last2=Hedman-Lagerlöf |first2=Erik |date=2023-02-01 |title=Validity and clinical utility of distinguishing between DSM-5 somatic symptom disorder and illness anxiety disorder in pathological health anxiety: Should we close the chapter? |journal=Journal of Psychosomatic Research |volume=165 |pages=111133 |doi=10.1016/j.jpsychores.2022.111133 |pmid=36624001 |issn=0022-3999|doi-access=free }}</ref>