ICD-11 Criteria for Autism Spectrum Disorder (6A02) Autism spectrum disorder is characterised by persistent deficits in the ability to initiate and to sustain reciprocal social interaction and social communication, and by a range of restricted, repetitive, and inflexible patterns of behaviour, interests or activities that are clearly atypical or excessive for the individual’s age and sociocultural context. The onset of the disorder occurs during the developmental period, typically in early childhood, but symptoms may not become fully manifest until later, when social demands exceed limited capacities. Deficits are sufficiently severe to cause impairment in personal, family, social, educational, occupational or other important areas of functioning and are usually a pervasive feature of the individual’s functioning observable in all settings, although they may vary according to social, educational, or other context. Individuals along the spectrum exhibit a full range of intellectual func...

Foundation URI : http://id.who.int/icd/entity/822487798 ICD-11 Criteria For Seasonal Pattern Of Mood Episode Onset 6A80.4  Description In the context of recurrent depressive disorder, bipolar type I or bipolar type II disorder, there has been a regular seasonal pattern of onset and remission of at least one type of episode (i.e., depressive, manic, mixed, or hypomanic episodes), with a substantial majority of the relevant mood episodes corresponding to the seasonal pattern. (In bipolar type I and bipolar type II disorder, all types of mood episodes may not follow this pattern.) A seasonal pattern should be differentiated from an episode that is coincidental with a particular season but predominantly related to a psychological stressor that regularly occurs at that time of the year (e.g., seasonal unemployment). Diagnostic Requirements This specifier can be applied if: In the context of Bipolar Type I or Bipolar Type II Disorder there has been a regular seasonal pattern of onset and...

ICD-11 Criteria for Rapid Cycling in Mood Disorder  6A80.5 Description In the context of bipolar type I or bipolar type II disorder, there has been a high frequency of mood episodes (at least four) over the past 12 months. There may be a switch from one polarity of mood to the other, or the mood episodes may be demarcated by a period of remission. In individuals with a high frequency of mood episodes, some may have a shorter duration than those usually observed in bipolar type I or bipolar type II disorder. In particular, depressive periods may only last several days. If depressive and manic symptoms alternate very rapidly (i.e., from day to day or within the same day), a mixed episode should be diagnosed rather than rapid cycling. Diagnostic Requirements This specifier can be applied if the Bipolar Type I or Bipolar Type II Disorder is characterized by a high frequency of Mood Episodes (at least four) over the past 12 months. There may be a switch from one polarity of mood to the ...

 Foundation URI : http://id.who.int/icd/entity/1906190365 ICD-11 Criteria for Current Depressive Episode Persistent 6A80.2 Description The diagnostic requirements for a depressive episode are currently met and have been met continuously for at least the past 2 years. Diagnostic Requirements This specifier can be applied if the diagnostic requirements for Depressive Episode are currently met and have been met continuously (five or more characteristic symptoms occurring most of the day, nearly every day) for at least the past 2 years. Reference: International Classification of Diseases Eleventh Revision (ICD-11). Geneva: World Health Organization; 2022. License: CC BY-ND 3.0 IGO. https://creativecommons.org/licenses/by-nc-nd/3.0/igo/

ICD-11 Criteria for Current Depressive Episode With Melancholia 6A80.3 Description In the context of a current Depressive Episode, several of the following symptoms have been present during the worst period of the current episode: loss of interest or pleasure in most activities that are normally enjoyable to the individual (i.e., pervasive anhedonia); lack of emotional reactivity to normally pleasurable stimuli or circumstances (i.e., mood does not lift even transiently with exposure); terminal insomnia (i.e., waking in the morning two hours or more before the usual time); depressive symptoms are worse in the morning; marked psychomotor retardation or agitation; marked loss of appetite or loss of weight. Diagnostic Requirements This specifier can be applied if, in the context of a current Depressive Episode, several of the following symptoms have been present during the worst period of the current episode: Loss of interest or pleasure in most activities that are normally enjoyable to t...

Foundation URI : http://id.who.int/icd/entity/1383708356 ICD-11 Criteria For Panic Attacks in Mood Episodes  6A80.1 Description In the context of a current mood episode (manic, depressive, mixed, or hypomanic), there have been recurrent panic attacks (i.e., at least two) during the past month that occur specifically in response to anxiety-provoking cognitions that are features of the mood episode. If panic attacks occur exclusively in response to such thoughts, panic attacks should be recorded using this qualifier rather than assigning an additional co-occurring diagnosis of panic disorder. If some panic attacks over the course of the depressive or mixed episode have been unexpected and not exclusively in response to depressive or anxiety-provoking thoughts, a separate diagnosis of panic disorder should be assigned. Exclusions Panic disorder (6B01) Diagnostic Requirements This specifier can be applied if, in the context of a current Episode, there have been panic attacks during the...

Foundation URI : http://id.who.int/icd/entity/1119039346 Prominent Anxiety Symptoms in Mood Episodes 6A80.0 Description In the context of a current depressive, manic, mixed, or hypomanic episode, prominent and clinically significant anxiety symptoms (e.g., feeling nervous, anxious or on edge, not being able to control worrying thoughts, fear that something awful will happen, having trouble relaxing, motor tension, autonomic symptoms) have been present for most of the time during the episode. If there have been panic attacks during a current depressive or mixed episode, these should be recorded separately. When the diagnostic requirements for both a mood disorder and an anxiety or fear-related disorder are met, the anxiety or fear-related disorder should also be diagnosed. Diagnostic Requirements This specifier can be applied if, in the context of a current Depressive, Manic, Mixed, or Hypomanic Episode, prominent and clinically significant anxiety symptoms (e.g., feeling nervous, anxio...

ICD-11 Criteria for Other Specified Depressive Disorders 6A7Y  Essential (Required) Features: The presentation is characterized by mood symptoms that share primary clinical features with other Depressive Disorders (e.g., depressed mood, decreased engagement in pleasurable activities, decreased energy levels, disruptions in sleep or eating). The symptoms do not fulfil the diagnostic requirements for any other disorder in the Depressive Disorders grouping. The symptoms are not better accounted for by another Mental, Behavioural or Neurodevelopmental Disorder (e.g., Schizophrenia or Other Primary Psychotic Disorder, an Anxiety or Fear-Related Disorder, a Disorder Specifically Associated with Stress). The symptoms and behaviours are not a manifestation of another medical condition and are not due to the effects of a substance or medication (e.g., alcohol, benzodiazepine) on the central nervous system, including withdrawal effects (e.g., from cocaine). The symptoms result in significant...

ICD-11 Criteria for Factitious Disorder Imposed on Self Factitious disorder imposed on self is characterised by feigning, falsifying, or inducing medical, psychological, or behavioural signs and symptoms or injury associated with identified deception. If a pre-existing disorder or disease is present, the individual intentionally aggravates existing symptoms or falsifies or induces additional symptoms. The individual seeks treatment or otherwise presents himself or herself as ill, injured, or impaired based on the feigned, falsified, or self-induced signs, symptoms, or injuries. The deceptive behaviour is not solely motivated by obvious external rewards or incentives (e.g., obtaining disability payments or evading criminal prosecution). This is in contrast to Malingering, in which obvious external rewards or incentives motivate the behaviour Inclusions:                Münchhausen syndrome Exclusions:    ...

Classification of Disorders Due to the Use of MDMA or Related Drugs, Including MDA (6C4C) Parent: Disorders due to substance use Show all ancestors expand  Description Disorders due to use of MDMA or related drugs, including MDA are characterised by the pattern and consequences of MDMA or related drug use. MDMA is methylene-dioxymethamphetamine and is a common drug of abuse in many countries especially among young people. It is predominantly available in tablet form known as ‘ecstasy’. Pharmacologically, MDMA has stimulant and empathogenic properties and these encourage its use among young people for social and other interactions. Considering its wide prevalence in many countries and among many sub-groups of young people, MDMA and Related Drug Dependence and MDMA and Related Drug Withdrawal are comparatively uncommon. Substance-Induced Mental Disorders may arise from its use. Several analogues of MDMA exist, including MDA (methylene-dioxyamphetamine). Exclusions Hazardous use of M...

ICD-11 Criteria for Trance disorder (6B62) Trance disorder is characterised by trance states in which there is a marked alteration in the individual’s state of consciousness or a loss of the individual’s customary sense of personal identity in which the individual experiences a narrowing of awareness of immediate surroundings or unusually narrow and selective focusing on environmental stimuli and restriction of movements, postures, and speech to repetition of a small repertoire that is experienced as being outside of one’s control. The trance state is not characterised by the experience of being replaced by an alternate identity. Trance episodes are recurrent or, if the diagnosis is based on a single episode, the episode has lasted for at least several days. The trance state is involuntary and unwanted and is not accepted as a part of a collective cultural or religious practice. The symptoms do not occur exclusively during another dissociative disorder and are not better explained by...

ICD-11 Criteria for Anxiety or Fear-Related Disorders (BlockL1‑6B0) Anxiety and fear-related disorders are characterised by excessive fear and anxiety and related behavioural disturbances, with symptoms that are severe enough to result in significant distress or significant impairment in personal, family, social, educational, occupational, or other important areas of functioning. I closely related fear and anxiety phenomena; fear represents a reaction to perceived imminent threat in the present, whereas anxiety is more future-oriented, referring to perceived anticipated threat. A key differentiating feature among the Anxiety and fear-related disorders are disorder-specific foci of apprehension, that is, the stimulus or situation that triggers the fear or anxiety. The clinical presentation of Anxiety and fear-related disorders typically includes specific associated cognitions that can assist in differentiating among the disorders by clarifying the focus of apprehension. Coded Elsewh...

ICD-11 Criteria for Disorders due to the Use of Non-Psychoactive Substances (6C4H) Disorders due to use of non-psychoactive substances are characterised by the pattern and consequences of non-medical use of non-psychoactive substances. Non-psychoactive substances include laxatives, growth hormone, erythropoietin, and non-steroidal anti-inflammatory drugs. They may also include proprietary or over-the-counter medicines and folk remedies. Non-medical use of these substances may be associated with harm to the individual because of the direct or secondary toxic effects of the non-psychoactive substance on body organs and systems, or a harmful route of administration (e.g., infections due to intravenous self-administration). They are not associated with intoxication or with a dependence or withdrawal syndrome and are not recognized causes of substance-induced mental disorders. 6C4H.0            Episode of harmful use of non-psychoactive sub...

ICD-11 Criteria for Generalised Anxiety Disorder (GAD) Foundation URI:   http://id.who.int/icd/entity/1712535455 Description Generalised anxiety disorder is characterised by marked symptoms of anxiety that persist for at least several months, for more days than not, manifested by either general apprehension (i.e. ‘free-floating anxiety’) or excessive worry focused on multiple everyday events, most often concerning family, health, finances, and school or work, together with additional symptoms such as muscular tension or motor restlessness, sympathetic autonomic over-activity, subjective experience of nervousness, difficulty maintaining concentration, irritability, or sleep disturbance. The symptoms result in significant distress or significant impairment in personal, family, social, educational, occupational, or other important areas of functioning. The symptoms are not a manifestation of another health condition and are not due to the effects of a substance or medication on t...

ICD-11 Criteria for Secondary Impulse Control Syndrome (6E66) A syndrome characterised by the presence of prominent symptoms that are characteristic of Impulse Control Disorders or Disorders Due to Addictive Behaviours (e.g., stealing, fire-setting, aggressive outbursts, compulsive sexual behaviour, excessive gambling) that are judged to be a direct pathophysiological consequence of a health condition not classified under mental and behavioural disorders, based on evidence from the history, physical examination, or laboratory findings. The symptoms are not accounted for by delirium or by another mental and behavioural disorder, and are not a psychologically mediated response to a severe medical condition (e.g., as part of an adjustment disorder in response to a life-threatening diagnosis). This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the impulse control symptoms are sufficiently severe to warrant specific clinical attent...

ICD-11 Criteria for Secondary Neurocognitive Syndrome (6E67) A syndrome that involves significant cognitive features that do not fulfill the diagnostic requirements of any of the specific neurocognitive disorders and are judged to be a direct pathophysiological consequence of a health condition or injury not classified under mental and behavioural disorders (e.g., cognitive changes due to a brain tumour), based on evidence from the history, physical examination, or laboratory findings. This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the cognitive symptoms are sufficiently severe to warrant specific clinical attention. Coding Note :       Code also the causing condition Exclusions: Disorders with neurocognitive impairment as a major feature (BlockL1‑8A2) Coded Elsewhere:    Delirium (6D70) REFERENCE: International Classification of Diseases Eleventh Revision (ICD-11). Geneva: World Health ...

ICD-11 Criteria for Secondary Dissociative Syndrome Description A syndrome characterised by the presence of prominent dissociative symptoms (e.g., depersonalization, derealization) that is judged to be the direct pathophysiological consequence of a health condition not classified under mental and behavioural disorders, based on evidence from the history, physical examination, or laboratory findings. The symptoms are not accounted for by delirium or by another mental and behavioural disorder, and are not a psychologically mediated response to a severe medical condition (e.g., as part of an acute stress reaction in response to a life-threatening diagnosis). This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the dissociative symptoms are sufficiently severe to warrant specific clinical attention. Exclusions Delirium (6D70) Acute stress reaction (QE84) Diagnostic Requirements Essential (Required) Features: The presence of prominen...

ICD-11 Criteria for Secondary Personality Change (6E68) A syndrome characterised by a persistent personality disturbance that represents a change from the individual’s previous characteristic personality pattern that is judged to be a direct pathophysiological consequence of a health condition not classified under Mental and behavioural disorders, based on evidence from the history, physical examination, or laboratory findings. The symptoms are not accounted for by delirium or by another mental and behavioural disorder, and are not a psychologically mediated response to a severe medical condition (e.g., social withdrawal, avoidance, or dependence in response to a life-threatening diagnosis). This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the personality symptoms are sufficiently severe to warrant specific clinical attention. Coding Note:       Code aslo the causing condition Exclusions:   Person...

ICD-11 Criteria for Secondary Catatonia Syndrome (6E69) Secondary catatonia syndrome is a syndrome of primarily psychomotor disturbances, characterized by the co-occurrence of several symptoms of decreased, increased, or abormal psychomotor activity, which occurs as a direct pathophysiological consequence of a medical condition not classified under Mental, Behavioural or Neurodevelopmental Disorders. Examples of medical conditions that may be associated with Catatonia include diabetic ketoacidosis, hypercalcemia, hepatic encephalopathy, homocystinuria, neoplasms head trauma, cerebrovascular disease, and encephalitis. Coding Note:       Use additional code, if desired, for any underlying disorder if known.   6E6Y           Other specified secondary mental or behavioural syndrome Coding Note:       Code aslo the causing condition   6E6Z         ...

ICD-11 Criteria for Secondary Obsessive-Compulsive or Related Syndrome (6E64) A syndrome characterised by the presence of prominent obsessions, compulsions, hoarding, skin picking, hair pulling, other body-focused repetitive behaviours, or other symptoms characteristic of obsessive-compulsive and related disorder that is judged to be the direct pathophysiological consequence of a disorder or disease not classified under Mental and behavioural disorders, based on evidence from the history, physical examination, or laboratory findings. The symptoms are not accounted for by Delirium or by another Mental and behavioural disorder, and are not a psychologically mediated response to a severe medical condition (e.g., repetitive ruminations in response to a life-threatening diagnosis). This category should be used in addition to the diagnosis for the presumed underlying disorder or disease when the obsessive-compulsive or related symptoms are sufficiently severe to warrant specific clinical a...