Psychoneurosis: Meaning, History, and Modern Usage
Author: Ukrainian Psychological Hub · Published: September 30, 2026 · Editorial Policy
Psychoneurosis is a historical psychiatric and psychoanalytic term, not a current diagnosis in DSM-5-TR or ICD-11. Across the late nineteenth and twentieth centuries, the word was used in several overlapping ways: as a label for disorders understood as primarily psychological or “functional,” as part of the older neurosis–psychosis distinction, and in psychoanalysis for forms of symptom formation explained through conflict, defense, and other psychodynamic mechanisms. The meaning therefore depends on the period, author, and classification system in which the term appears. The American Psychiatric Association’s history of the DSM shows how psychoneurotic and neurotic categories shaped early American psychiatric classification before DSM-III changed the diagnostic architecture.
For a modern reader, the central point is practical: “psychoneurosis” cannot be translated into one present-day disorder. An old diagnosis or psychoanalytic description may point toward symptoms now classified under anxiety or fear-related disorders, obsessive-compulsive and related disorders, dissociative disorders, somatic symptom-related conditions, depressive disorders, trauma- and stressor-related disorders, or other categories. The correct translation requires the original clinical description, not the historical label alone. Current systems instead diagnose specific syndromes using contemporary criteria, such as those described in DSM-5-TR and the WHO’s ICD-11 Clinical Descriptions and Diagnostic Requirements.
What does psychoneurosis mean?
Psychoneurosis most broadly refers to an older family of concepts used for psychologically mediated disorders that were usually distinguished from psychotic disorders. In many twentieth-century psychiatric contexts, the term covered conditions involving anxiety, phobias, obsessions and compulsions, conversion or dissociative phenomena, depressive symptoms, somatic complaints, and related forms of distress without the label itself identifying a single disease entity.
In classical psychoanalytic writing, the word carried a more theoretical meaning. A psychoneurosis was not merely a collection of symptoms; it was a way of explaining how symptoms could arise from psychological conflict, defense, repression, and compromise formation. Freud’s terminology developed over time, and his distinction between psychoneuroses and “actual neuroses” was part of a specific historical theory rather than a present-day diagnostic rule. Historical psychoanalytic meaning and modern psychiatric classification therefore have to be read on separate levels.
The term also became unstable because different schools used it differently. A 1951 paper by Karl M. Bowman and Milton Rose explicitly criticized the inconsistent use of “psychosis,” “psychoneurosis,” and “neurosis.” That debate is useful evidence of a larger point: even when psychoneurosis was common professional vocabulary, its borders were not universally fixed.
Why the meaning changes across historical sources
When a historical word remains in circulation for decades, its apparent familiarity can hide major changes in meaning. Psychoneurosis passed through neurology, psychiatry, psychoanalysis, military medicine, hospital classification, and medical indexing. Each setting could emphasize a different feature: presumed cause, severity, reality testing, symptom pattern, personality organization, or treatment model.
This is why a dictionary-style definition is insufficient for clinical interpretation. A record from 1910, a psychoanalytic paper from 1935, a military medical report from 1945, a DSM-I diagnosis from the 1950s, and a modern database entry can all contain the same word while referring to partly different conceptual systems. Jackson M. Thomas’s 1945 article on the use of the term “psychoneurosis” documents how contested and context-dependent the label had already become in mid-century medicine.
Historical origins: neurosis before psychoneurosis
The older word “neurosis” predates psychoneurosis by more than a century. William Cullen introduced neurosis in eighteenth-century medical classification for a broad class of disorders of the nervous system. That original category was far wider than what twentieth-century psychiatrists later meant by a neurotic disorder. A historical review by W. F. Knoff traces the concept from Cullen onward and illustrates how dramatically its medical meaning changed.
During the nineteenth century, psychiatry and neurology repeatedly redrew the boundaries among nervous disease, insanity, functional disturbance, hysteria, neurasthenia, obsessions, phobias, and emerging concepts of psychosis. The later compound “psycho-neurosis” or “psychoneurosis” appeared within that shifting nosological environment. It should therefore not be projected backward as if it had possessed one stable definition from its first use.
Early uses of psycho-neurosis and psychoneurosis
The compound was in psychiatric circulation by the early 1880s. Thomas S. Clouston’s 1883 Clinical Lectures on Mental Diseases used “Psycho-Neurosis” in his classification. Other late nineteenth-century authors used related language in different ways. Historical scholarship on obsessional neurosis, including Ulrike May-Tolzmann’s study, shows how fluid German-language psychiatric terminology was around the period in which Freud was developing his own nosology.
These early appearances matter because they prevent a simple origin story. Freud became enormously influential in defining psychoneurosis within psychoanalytic theory, but the word family did not begin as a single, fully formed Freudian diagnosis. The history is better understood as a sequence of overlapping classifications that acquired new theoretical meanings.
Psychoneurosis in Freud and classical psychoanalysis
Freud’s work transformed the conceptual role of neurosis by proposing psychological mechanisms for symptoms that earlier medicine had often organized through neurological or constitutional models. In his 1894 paper The Defence Neuro-Psychoses, Freud discussed hysteria, phobias, obsessions, and certain psychotic phenomena in terms of defense. The paper belongs to an early phase of a theory that continued to change substantially over the following decades.
Psychoneurosis and “actual neurosis”
One historically important Freudian distinction separated “actual neuroses” from psychoneuroses. In Freud’s developing theory, actual neuroses were explained through immediate disturbances in sexual excitation and bodily processes, whereas psychoneuroses were increasingly understood through psychical history, conflict, defense, and the meaning of symptoms. Geyskens’s historical analysis traces this distinction in Freud’s letters to Wilhelm Fliess from the 1890s, while Gediman’s later psychoanalytic review shows how the distinction was reconsidered within psychoanalytic theory.
These mechanisms should be read as claims within Freud’s historical theoretical system. Contemporary psychiatry does not require a clinician to establish unconscious conflict, repression, or a specific psychodynamic etiology in order to diagnose an anxiety disorder, OCD, a dissociative disorder, a somatic symptom-related disorder, or another current condition.
Conflict, defense, and symptom formation
Within psychoanalytic models, a symptom could be interpreted as a compromise formation: an outcome that simultaneously expresses and defends against conflict. This explanatory language gave “psychoneurosis” a depth-psychological meaning that was different from simply saying a person had anxiety, phobic avoidance, compulsions, or bodily symptoms. The theory attempted to explain why a symptom had its particular form and meaning for a particular person.
That distinction remains important when reading historical sources. A psychoanalyst calling a condition psychoneurotic may be making a theory-based statement about psychic organization and causation, while a psychiatric manual using a psychoneurotic category may be performing classification. The same word can therefore operate as a psychoanalytic concept and as a diagnostic label without those uses being identical.
Psychoneurosis in DSM-I and DSM-II
American psychiatric classification formally incorporated psychoneurotic language in the first two editions of the DSM. The APA’s DSM history notes that the sixth revision of the International Classification of Diseases, influenced by postwar U.S. military and Veterans Administration classifications, included categories for psychoses and psychoneuroses. DSM-I, published in 1952, developed within that postwar classificatory environment.
DSM-I (1952): Psychoneurotic Disorders
DSM-I used a section titled “Psychoneurotic Disorders.” The original DSM-I organized several symptom patterns under that broad heading. Historical accounts describe categories such as anxiety reaction, dissociative reaction, conversion reaction, phobic reaction, obsessive-compulsive reaction, and depressive reaction. The terminology reflected the psychodynamic assumptions and “reaction” language that shaped much of American psychiatry at the time.
A DSM-I psychoneurotic diagnosis therefore should not be converted directly into a DSM-5-TR diagnosis by matching words. An “obsessive-compulsive reaction,” for example, belongs to a different diagnostic system from current obsessive-compulsive disorder. There is historical continuity in some symptom descriptions, but the criteria, conceptual boundaries, comorbidity rules, and diagnostic families changed.
DSM-II (1968): Neuroses
DSM-II, published in 1968, changed the section name from psychoneurotic disorders to “Neuroses.” Historical analyses describe categories such as anxiety neurosis, hysterical neurosis, phobic neurosis, obsessive-compulsive neurosis, and depressive neurosis. The change in wording did not create a simple one-to-one bridge to later DSM diagnoses; it still reflected an older organizing concept of neurosis.
The broader history of psychiatric nosology shows that psychoanalytic concepts remained influential in DSM-I and DSM-II. A historical review of DSM development notes that DSM-I’s psychoneurosis section and DSM-II’s neuroses occupied a major structural role in the manuals. This matters because “psychoneurosis” in a mid-century record may be tied to an official classification practice that no longer exists.
Why DSM-III dropped neurosis as an organizing diagnosis
DSM-III, published in 1980, represented a major change in American psychiatric classification. The APA’s official history describes its introduction of explicit diagnostic criteria, multiaxial assessment, and an approach intended to be relatively neutral about the causes of mental disorders. This shift reduced the role of theory-laden umbrella categories and emphasized operational definitions that clinicians and researchers could apply more consistently.
The removal of neurosis was also professionally contested. Bayer and Spitzer’s historical account documents the debates over psychodynamics and the symbolic importance of the word “neurosis” during the development of DSM-III. Frances and colleagues later summarized the change in anxiety classification: DSM-I and DSM-II had used Freudian anxiety-neurosis concepts as an organizing principle, while DSM-III dropped the term and reorganized the disorders.
The result was not that the suffering previously described under neurosis disappeared. The classificatory unit changed. Symptoms were redistributed into more specific diagnostic categories, and later DSM editions continued to refine those categories. This historical transition is the key to understanding why psychoneurosis can be meaningful in an old record while having no current DSM diagnosis with the same name.
Psychoneurosis in ICD-10 and ICD-11
The international classification history followed a somewhat different timeline. The WHO’s ICD-10 clinical guidelines, published in 1992, retained the block F40–F48 under the heading “Neurotic, stress-related and somatoform disorders.” This is a genuine example of “neurotic” terminology remaining in an official late-twentieth-century classification after DSM-III had moved away from neurosis as an organizing principle.
That ICD-10 block still should not be called a single diagnosis of psychoneurosis. It grouped multiple diagnoses, including phobic anxiety disorders, other anxiety disorders, obsessive-compulsive disorder, reactions to severe stress and adjustment disorders, dissociative disorders, somatoform disorders, and other neurotic disorders. The block heading was classificatory; it did not establish psychoneurosis as one disorder.
ICD-11 reorganized mental, behavioral, and neurodevelopmental disorders. The 2024 WHO ICD-11 CDDR is the current clinical diagnostic manual for this revision. ICD-11 was adopted in 2019 and came into effect for health reporting in January 2022. Psychoneurosis is not a current ICD-11 diagnostic category. Conditions historically collected under neurotic headings are now distributed across modern groupings such as anxiety or fear-related disorders, obsessive-compulsive and related disorders, disorders specifically associated with stress, dissociative disorders, and bodily distress or bodily experience-related disorders.
Is psychoneurosis a diagnosis today?
No. Psychoneurosis is not a current diagnosis in DSM-5-TR, published in 2022, and it is not a current diagnostic category in ICD-11. The APA’s current DSM-5-TR overview and the WHO’s ICD-11 CDDR organize mental disorders using current named categories rather than a unified psychoneurosis diagnosis.
The word can still be clinically relevant as historical information. It may appear in an old chart, a psychoanalytic case formulation, a journal article, a family history, a translated record, a legacy database, or a bibliographic index. Its presence tells you something about the language and conceptual system of the source; it does not by itself tell you what diagnosis a clinician would assign today.
What conditions were historically called psychoneuroses?
The exact contents varied by era and school, but historical psychoneurotic or neurotic groupings commonly included phenomena that would now be separated. Examples include:
Anxiety and panic-like presentations, including older categories such as anxiety reaction or anxiety neurosis.
Phobic fear and avoidance, historically classified as phobic reaction or phobic neurosis in some systems.
Obsessions and compulsions, historically described through terms such as obsessional or obsessive-compulsive neurosis. Current OCD is a distinct modern diagnosis; see our evidence-based OCD guide.
Hysterical, conversion, and dissociative presentations, whose historical categories were later reorganized in multiple ways.
Depressive presentations, including older terms such as depressive reaction or depressive neurosis, which do not equal any single current depressive diagnosis.
Somatic and psychophysiological complaints that older clinicians understood through functional, psychogenic, or neurotic frameworks.
Stress-related presentations whose later classification developed into distinct trauma- and stressor-related categories.
This list is historical, not a current psychoneurosis symptom checklist. A person with anxiety, compulsions, dissociation, depressed mood, or bodily symptoms should not be labeled “psychoneurotic” on that basis. Modern diagnosis depends on the full symptom pattern, duration, impairment, exclusions, differential diagnosis, and the criteria of the current classification system.
What does psychoneurosis map onto today?
There is no one-to-one modern equivalent. The most useful translation is domain-based: identify what the historical source actually described, then ask which present-day diagnostic families evaluate that domain. The historical label alone is insufficient.
Prominent generalized anxiety, panic, or phobic avoidance may now be evaluated within anxiety or fear-related disorders, depending on the exact pattern.
Obsessions and compulsions may call for evaluation of OCD or another obsessive-compulsive and related disorder; the old phrase “obsessional neurosis” is not itself a current OCD diagnosis.
Conversion, dissociative, amnestic, or depersonalization phenomena may fall within contemporary dissociative or functional neurological frameworks, depending on presentation and classification.
Persistent bodily distress or illness-focused concerns may be evaluated within modern somatic symptom-related or bodily distress frameworks rather than an umbrella neurosis label.
Depressive symptoms may belong to depressive disorders, adjustment-related conditions, trauma-related disorders, or other diagnoses depending on course and context.
Stress-linked symptoms may be evaluated using trauma- and stressor-related diagnoses when current criteria are met.
This translation is intentionally many-to-many. A single historical psychoneurosis could contain features that modern systems distribute across several diagnoses, and a modern diagnosis can include features that older clinicians would have conceptualized differently. Historical continuity exists at the level of human symptoms more reliably than at the level of diagnostic names.
Psychoneurosis vs neurosis
Psychoneurosis and neurosis overlapped heavily, but they were not perfect synonyms in every source. “Neurosis” had a much longer history and began as a broad medical category for nervous diseases. “Psychoneurosis” more explicitly marked a psychological or psychiatric framing and, in psychoanalytic contexts, could identify a particular theory of symptom formation.
By the twentieth century, some authors used the words nearly interchangeably, while others preserved technical distinctions. This is why the safest historical reading asks four questions: Who used the term? In what year? In which theoretical or diagnostic system? What symptoms or mechanisms did the author actually describe?
Psychoneurosis vs psychosis
Psychoneurosis was often contrasted with psychosis, particularly in twentieth-century psychiatry and psychoanalysis. The contrast frequently involved assumptions about severity, insight, contact with reality, personality organization, and the kinds of mechanisms thought to produce symptoms. Yet those assumptions changed over time.
The history of “psychosis” itself is unstable. Michael D. Beer’s historical review shows that psychosis shifted substantially in meaning during the nineteenth and twentieth centuries before becoming a more specialized psychiatric term. Consequently, the old neurosis–psychosis dichotomy should not be used as a modern diagnostic test.
A historical diagnosis of psychoneurosis does not guarantee that a person never experienced psychotic symptoms, and the presence of poor insight in a modern disorder does not automatically convert that condition into a psychotic disorder. Current clinicians evaluate psychotic symptoms and disorders using contemporary diagnostic criteria and differential diagnosis.
Psychoneurosis vs neuroticism
Neuroticism is a modern personality trait construct, especially associated with the Big Five model of personality. It concerns a tendency toward negative emotionality and sensitivity to stress. It is not a synonym for psychoneurosis, it is not a historical psychoneurotic diagnosis, and a high neuroticism score does not establish any mental disorder.
This distinction matters because everyday language often collapses “neurotic,” “neurosis,” and “neuroticism.” The concepts belong to different levels: psychoneurosis is a historical clinical and theoretical term; neuroticism is a personality trait; current clinical diagnoses are separate classifications based on diagnostic criteria.
Why does psychoneurosis still appear in medical databases?
Legacy terminology persists in databases because scientific indexing has to connect older and newer literature. The U.S. National Library of Medicine’s MeSH entry for “Neurotic Disorders” includes “Psychoneuroses” as an entry term. This means a literature search can still encounter the word even though modern DSM and ICD classification no longer recognizes psychoneurosis as a current diagnosis.
Controlled vocabulary is designed for information retrieval across decades of publications. It should not be mistaken for a current diagnostic manual. Database terminology can preserve obsolete or legacy synonyms precisely because researchers need to find historical papers that used them.
Does psychoneurosis have a modern symptom list?
There is no authoritative modern symptom checklist for psychoneurosis because there is no current DSM-5-TR or ICD-11 diagnosis with that name. Lists online that present “symptoms of psychoneurosis” as though they define one current disorder usually combine symptoms from several different conditions or reproduce older psychiatric descriptions.
A modern assessment starts with the actual symptoms: anxiety, panic, avoidance, intrusive thoughts, compulsions, depressed mood, dissociation, bodily distress, trauma-related symptoms, sleep problems, or other concerns. The clinician then considers duration, triggers, impairment, medical causes, substance effects, comorbidity, and differential diagnoses. The historical umbrella does not replace that process.
Treatment implications: treat the current condition, not the legacy label
Because psychoneurosis is not a current diagnosis, there is no single evidence-based “treatment for psychoneurosis.” Historically, psychoanalysis and psychodynamic therapies were developed in close connection with neurosis concepts, and older medical literature may discuss psychoneurotic treatment in those terms. Contemporary treatment planning begins with the person’s current problems and the best-supported interventions for the specific diagnosis or symptom pattern.
For example, a person whose old chart says psychoneurosis might today meet criteria for an anxiety disorder, OCD, a trauma-related disorder, a dissociative disorder, a depressive disorder, a somatic symptom-related disorder, another condition, multiple conditions, or no current disorder at all. The legacy label cannot determine treatment selection.
If an old diagnosis is affecting current care, a clinician can reinterpret the original record using modern criteria while preserving its historical context. That process is more accurate than simply replacing “psychoneurosis” with whichever modern term sounds most similar.
How to interpret psychoneurosis in an old medical record
When you encounter psychoneurosis in a chart, certificate, military record, family document, or historical case report, read it as evidence from a particular diagnostic era. A useful interpretation follows the record rather than the word.
Identify the date. A diagnosis from 1915, 1955, and 1975 belongs to different diagnostic environments.
Identify the source system. Was the term used by a psychoanalyst, hospital, military service, DSM-era clinician, ICD-coded service, or another institution?
Look for a subtype or accompanying description. Anxiety, phobic, obsessive-compulsive, conversion, depressive, or dissociative language may narrow the historical meaning.
Look at symptoms and functioning. The descriptive record often translates more reliably than the umbrella label.
Do not assume a modern equivalent. A current diagnosis requires current criteria and current clinical assessment.
Do not treat a database synonym as a diagnosis. Indexing systems preserve historical terminology for search and retrieval.
Common misconceptions about psychoneurosis
“Psychoneurosis is another name for anxiety disorder.”
Anxiety was central to many historical neurosis theories and classifications, but psychoneurosis covered much more than modern anxiety disorders. Depending on the period, it could include phobias, compulsions, conversion symptoms, dissociative phenomena, depressive reactions, and other presentations.
“Psychoneurosis is the old name for OCD.”
Obsessive-compulsive neurosis or obsessional neurosis was one historical form within broader neurotic classifications. Modern OCD has its own diagnostic criteria and belongs to the obsessive-compulsive and related disorders family. The relationship is historical, not synonymous.
“If someone was diagnosed with psychoneurosis, they did not have a serious illness.”
Historical neurosis labels were often contrasted with psychosis, but that contrast did not mean symptoms were trivial. Anxiety, compulsions, functional neurological symptoms, dissociation, depressive symptoms, and other problems historically described as neurotic could be profoundly disabling.
“Psychoneurosis is still an official diagnosis because it appears in PubMed or MeSH.”
Medical databases preserve legacy terms to retrieve older literature. The presence of “Psychoneuroses” in NLM MeSH is an indexing fact, not evidence that DSM-5-TR or ICD-11 recognizes a current diagnosis called psychoneurosis.
Frequently asked questions
Is psychoneurosis a mental illness?
Historically, psychoneurosis was used for forms of mental disorder or psychological disturbance. Today it is a legacy term rather than an official diagnosis. Whether a person has a current mental disorder depends on current symptoms, impairment, and diagnostic criteria, not on the historical word alone.
Is psychoneurosis in DSM-5-TR?
No. DSM-5-TR, published in 2022, does not contain psychoneurosis as a current diagnosis. Disorders once gathered under neurotic or psychoneurotic headings are classified in multiple modern diagnostic families.
Is psychoneurosis in ICD-11?
No. ICD-11 does not use psychoneurosis as a current diagnostic category. ICD-10 retained the broader heading “Neurotic, stress-related and somatoform disorders” for F40–F48, but ICD-11 reorganized these conditions into contemporary groupings.
What did Freud mean by psychoneurosis?
In Freud’s developing psychoanalytic theory, psychoneuroses were disorders whose symptoms were understood through psychological history, conflict, defense, and symptom meaning. He distinguished them from “actual neuroses” within his historical etiological theory. Freud’s terminology changed across his career, so a precise answer depends on the text and period being discussed.
Is psychoneurosis the same as neurosis?
They often overlapped, and some authors used them almost interchangeably. “Neurosis” has a broader and older history, while “psychoneurosis” frequently emphasized psychological causation or a psychoanalytic formulation. The distinction depends on the historical source.
Is psychoneurosis the same as psychosis?
No. Historical psychiatry often contrasted psychoneurosis or neurosis with psychosis. The exact boundary changed over time, and modern diagnosis no longer relies on that old binary as a master classification. Current psychotic disorders are assessed using specific contemporary criteria.
Can OCD be called a psychoneurosis?
Historically, obsessive-compulsive or obsessional neurosis was part of neurotic classification and psychoanalytic theory. In current clinical practice, OCD is diagnosed as obsessive-compulsive disorder when its modern criteria are met. Calling current OCD “psychoneurosis” would replace a precise contemporary diagnosis with a legacy umbrella term.
What should I do if an old record says psychoneurosis?
Use the label as a historical clue. Look at the year, the institution or clinician, any subtype, the described symptoms, and the treatment context. If the record matters to current health care, a qualified clinician can interpret it alongside present symptoms and current diagnostic criteria.
The modern takeaway
Psychoneurosis is best understood as a historical bridge across several eras of psychiatry and psychoanalysis. It once helped clinicians organize disorders that they believed were psychologically generated, functionally expressed, or distinct from psychosis; psychoanalysis also gave the term a theory of conflict and defense. DSM-I formalized psychoneurotic disorders, DSM-II retained neuroses, DSM-III reorganized the field around more operationally defined diagnoses, ICD-10 retained a neurotic block, and ICD-11 now uses different diagnostic groupings.
For present-day clinical interpretation, the word should prompt translation rather than diagnosis. Identify the source, recover the symptoms and theoretical context, and then use current diagnostic categories where appropriate. That preserves the historical meaning of psychoneurosis without turning an old umbrella term into a modern disease.
Related Articles
Neurotic Disorders in Medical Literature: Why the Term Still Appears in Databases and Older Research
References
American Psychiatric Association. About DSM-5-TR. American Psychiatric Association
American Psychiatric Association. DSM History. American Psychiatric Association
American Psychiatric Association. Diagnostic and Statistical Manual: Mental Disorders (DSM-I). 1952. PsychiatryOnline
Bayer R, Spitzer RL. Neurosis, Psychodynamics, and DSM-III: A History of the Controversy. Archives of General Psychiatry. 1985;42(2):187–196. doi:10.1001/archpsyc.1985.01790250081011
Beer MD. Psychosis: A history of the concept. Comprehensive Psychiatry. 1996;37(4):273–291. doi:10.1016/S0010-440X(96)90007-3
Bowman KM, Rose M. A criticism of the terms “psychosis,” “psychoneurosis,” and “neurosis.” American Journal of Psychiatry. 1951;108(3):161–166. doi:10.1176/ajp.108.3.161
Clouston TS. Clinical Lectures on Mental Diseases. London: J. & A. Churchill; 1883. Wellcome Collection
Frances A, Miele GM, Widiger TA, Pincus HA, Manning D, Davis WW. The classification of panic disorders: from Freud to DSM-IV. Journal of Psychiatric Research. 1993;27 Suppl 1:3–10. doi:10.1016/0022-3956(93)90013-R
Freud S. The Defence Neuro-Psychoses. 1894. FreudEdition
Gediman HK. Actual neurosis and psychoneurosis. International Journal of Psycho-Analysis. 1984;65(Pt 2):191–202. PubMed PMID 6203859
Geyskens T. Freud’s letters to Fliess: From seduction to sexual biology, from psychopathology to a clinical anthropology. International Journal of Psychoanalysis. 2001;82(Pt 5):861–876. doi:10.1516/0020757011601244
Knoff WF. A history of the concept of neurosis, with a memoir of William Cullen. American Journal of Psychiatry. 1970;127(1):80–84. doi:10.1176/ajp.127.1.80
May-Tolzmann U. “Obsessional neurosis”: a nosographic innovation by Freud. History of Psychiatry. 1998;9(35):335–353. doi:10.1177/0957154X9800903504
National Library of Medicine. Neurotic Disorders — MeSH Descriptor Data. MeSH D009497
Thomas JM. The Use of the Term “Psychoneurosis.” New England Journal of Medicine. 1945;232:121–124. doi:10.1056/NEJM194502012320501
World Health Organization. The ICD-10 Classification of Mental and Behavioural Disorders: Clinical Descriptions and Diagnostic Guidelines. 1992. WHO
World Health Organization. Clinical Descriptions and Diagnostic Requirements for ICD-11 Mental, Behavioural and Neurodevelopmental Disorders. 2024. WHO