ICD 10 - International Classification of Diseases of the 10th Revision


Included: violations of psychological development

Excluded: symptoms, abnormalities detected in clinical and laboratory studies, not elsewhere classified ( R00-R99 )

This class contains the following blocks:

  • F00-F09 Organic, including symptomatic, mental disorders
  • F10-F19 Mental and behavioral disorders related to use of psychoactive substances
  • F20-F29 Schizophrenia, schizotypal and delusional disorders
  • F30-F39 Mood disorders [affective disorders]
  • F40-F48 Neurotic, associated with stasis, and somatoform disorders
  • F50-F59 Behavioral syndromes associated with physiological disorders and physical factors
  • F60-F69 Disorders of personality and behavior in adulthood
  • F70-F79 Mental retardation
  • F80-F89 Disorders of psychological development
  • F90-F98 Emotional disorders, behavioral disorders, usually beginning in childhood and adolescence
  • F99 Unspecified mental disorders

An asterisk denotes the following headings:

  • F00 * Dementia in Alzheimer's disease
  • F02 * Dementia in other diseases classified elsewhere


This block includes a number of mental disorders grouped together due to the presence of obvious etiological factors, namely, the cause of these disorders were brain diseases, brain trauma or stroke leading to cerebral dysfunction. Dysfunction can be primary (as in diseases, brain injuries and strokes, directly or selectively affecting the brain) and secondary (as in systemic diseases or disorders, when the brain is involved in the pathological process along with other organs and systems).

Dementia [dementia] (F00-F03) is a syndrome caused by brain damage (usually of a chronic or progressive nature), in which many higher cortical functions are violated, including memory, thinking, orientation, understanding, counting, learning ability, speech and judgment . Consciousness is not obscured. Reduction of cognitive function is usually accompanied, and sometimes preceded by a worsening of control over emotions, social behavior or motivation. This syndrome is noted in Alzheimer's disease, cerebrovascular diseases and other conditions that primarily or secondary damage the brain.

If necessary, an additional code is used to identify the original disease.


This block contains a wide range of different severity and clinical manifestations of disorders, the development of which is always associated with the use of one or more psychoactive substances prescribed or not prescribed for medical reasons. A three-digit rubric identifies the substance used, and the fourth sign of the code determines the clinical characteristic of the condition. Such coding is recommended for each specified substance, but it should be noted that not all four-digit codes are applicable for all substances.

The identification of a psychoactive substance should be based on as many sources of information as possible. These include data reported by the individual himself, the results of a study of blood and other biological fluids, characteristic somatic and psychological signs, clinical and behavioral symptoms, and other obvious data, such as a substance at the disposal of the patient or information from third parties. Many drug users use more than one type of drug. The main diagnosis should be if possible on the substance (or group of substances) that caused clinical symptoms or contributed to their appearance. Other diagnoses should be encoded in cases where another psychoactive substance is taken in the amount that caused poisoning (common fourth sign.0) that caused harm to health (common fourth sign .1), leading to dependence (common fourth sign .2) or other disorders common fourth character .3-.9).

Only when the use of narcotic substances is chaotic and mixed or the contribution of various psychoactive substances to the clinical picture is impossible to isolate, the diagnosis of disorders caused by the use of several narcotic substances should be diagnosed ( F19.- ).

Excluded: abuse of non-addictive substances ( F55 )

The following fourth characters are used in the headings F10-F19 :

  • .0 Acute intoxication

    Excluded: intoxications, implying poisoning ( T36-T50 )

  • .1 Use with harmful consequences

    The use of psychotropic substance, which causes damage to health. Damage can be physical (as in cases of hepatitis from self-imposed psychotropic substances) or mental (for example, episodes of depressive disorder with prolonged use of alcohol).

    Psychotropic Substance Abuse

  • .2 Addiction Syndrome

    A group of behavioral, mnestic and physiological phenomena developing with repeated use of a substance that include a strong desire to take drugs, lack of self-control, use in spite of the harmful consequences, higher priority of drug use before other actions and obligations, increased tolerance to substances.

    The dependence syndrome may refer to a specific psychotropic substance (eg, tobacco, alcohol or diazepam), to a class of substances (eg, opioid preparations), or to a wider range of different psychotropic substances.

    • Chronic chronic alcoholism
    • Dipsomania
    • Addiction
  • .3 The withdrawal syndrome

    A group of symptoms of variable clustering and severity occurring on absolute psychiatric substance after persistent use of that substance. The onset and the course of the withdrawal state are the time-limited and are of the type of psychoactive substance. The withdrawal state may be complicated by convulsions.

  • .4 withdrawal syndrome with delirium

    A condition where the withdrawal state is defined in the common fourth character .3 is complicated by delirium as defined in F05.- . Convulsions may also occur. When organic factors are also considered to play a role in theology, the condition should be classified to F05.8 .

    Delirium tremens (alcohol-induced)

  • .5 Psychotic Disorder

    A cluster of psychotic phenomena that occur during and after the psychoactive substance use. The disorder is characterized by hallucinations (typical auditory, but often in more than one sensory modality), perceptual distortions, delusions (often of a paranoid or persecutory nature), psychomotor disturbances (excitement or stupor), and an abnormal affect, which may range from intense fear to ecstasy. The sensorium is usually clear but some degree of clouding of consciousness, though not severe confusion, may be present.


    • hallucinations

    • jealousy

    • paranoia

    • psychoses of BDU

    Excluded: alcohol- or other psychoactive substance-induced residual and late-onset psychotic disorder ( F10-F19 with the fourth sign .7)

  • .6 Amnestic syndrome

    A syndrome is associated with chronic impairment of recent and remote memory. Immediate recall is usually preserved. Disturbances of time sense and ordering of events are usually evident, as are difficulties in learning new material. Confabulation may be marked but is not invariably present. Other cognitive functions are usually relatively well preserved and amnesic defects are out of proportion to other disturbances.

    Amnestic disorder, alcohol-or drug-induced

    Korsakov's psychosis or syndrome, alcohol- or other psychoactive substance-induced or unspecified

    With an additional code, ( E51.2 †, G32.8 * ), if desired, when associated with Wernicke's disease or syndrome.

    Excluded: Organic amnestic syndrome not caused by alcohol or other psychoactive substances ( F04 )

  • .7 Residual condition and psychotic disorder with a delayed debut

    Anxiety in which violations of cognitive functions, emotions, personality or behavior caused by taking alcohol or a psychoactive substance may persist after a period during which the psychoactive substance is directly affected. The onset of the disorder should be directly attributed to the use of the psychoactive substance. Cases in which the onset of the disturbance occurs after the episode (episode) of the use of the psychoactive substance can be encoded by the aforementioned fourth sign only if the apparent association of the disorder with residual effects of the psychoactive substance has been clearly proven.

    Residual phenomena can be distinguished from the psychotic state in part because of their episodic, mostly short duration, by duplicating previous alcoholic or narcotic manifestations.

    Alcoholic dementia BDI

    Chronic alcoholic cerebral syndrome

    Dementia and other mild forms of persistent cognitive dysfunction

    "Flashback" (Flashbacks)

    The delayed psychotic disorder caused by the use of psychoactive substance

    Impairment of perception after the use of a hallucinogen


    • - emotional [affective] disorder

    • - personality disorder and behavior


    • alcoholic or narcotic:
      • - Korsakov syndrome (F10 - F19 with the common fourth sign .6)
      • - psychotic state (F10 - F19 with common fourth sign .5)

  • .8 Other mental and behavioral disorders due to use of psychoactive substances
  • .9 Mental and behavioral disorders due to use of psychoactive substances, unspecified


This unit includes schizophrenia as the most important part of the group, schizotypic disorder, persistent delusions and a large group of acute and transient psychotic disorders. Schizoaffective disorders were left in this block, despite their contradictory nature.


This block includes disorders in which the main disturbance is a change in emotions and mood towards depression (with or without anxiety) or in the direction of uplift. Mood changes are usually accompanied by changes in the overall activity level.

Most of the other symptoms are secondary or easily explained on the background of changes in mood and activity. Such disorders most often tend to recur, and the onset of a particular episode can often be associated with stressful events and situations.


Excluded: related to behavioral disorders classified under F91.- ( F92.8 )



This block includes various states and models of behavior of clinical significance, which tend to be stable and arise as an expression of the characteristic way of life of an individual and his relationships with others. Some of these states and patterns of behavior appear early in the course of individual development as a result of the simultaneous impact of constitutional factors and social experience, while others are acquired at later stages of life.

Specific personality disorders ( F60.- ), mixed and other personality disorders ( F61.- ), long-lasting personality changes ( F62.- ) are deeply ingrained and long-term patterns of behavior, manifested as an inflexible response to a variety of personal and social situations. Such disorders represent extreme or significant deviations from the way that an ordinary person of a given level of culture perceives, thinks, feels, and especially communicates with others. Such patterns of behavior tend to be robust and cover many areas of behavior and psychological functioning. These disorders are often, but not always, associated with subjective experiences of varying degrees and social problems.


The state of detained or incomplete mental development, which is characterized primarily by the reduction of skills arising in the development process, and the skills that determine the overall level of intelligence (ie cognitive abilities, language, motor skills, social capacity). Mental retardation can occur against the background of another mental or physical impairment or without it.

The degree of mental retardation is usually assessed by standardized tests that determine the patient's condition. They can be supplemented by scales that assess social adaptation in this environment. These methods provide an approximate definition of the degree of mental retardation. The diagnosis will also depend on the overall assessment of intellectual functioning at the identified skill level.

Intellectual abilities and social adaptation can change over time, however it is rather weak. This improvement can be the result of training and rehabilitation. The diagnosis should be based on the level of mental activity achieved to date.

To identify the degree of mental deficiency, the headings F70-F79 are used with the following fourth sign:

.0 With an indication of a lack or a mild manifestation of behavioral disorders

.1 Significant behavioral disorder requiring care and treatment

.8 Other behavioral disorders

.9 Without evidence of conduct disorder

If necessary, identify the conditions associated with mental retardation, such as autism, other developmental disorders, epilepsy, behavioral disorders, or severe physical disabilities, use additional code.


The disorders included in this block have common features: a) the onset is mandatory in infancy or childhood; b) violation or delay in the development of functions closely related to the biological maturation of the central nervous system; c) steady flow without remissions and relapses. In most cases, speech, visual-spatial skills and motor coordination suffer. Usually, the delay or disturbance manifested as early as possible was reliably detected, will progressively decrease as the child grows up, although an easier insufficiency often remains in adulthood.



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In Russia, the International Classification of Diseases of the 10th revision ( ICD-10 ) was adopted as a single normative document to take into account the incidence, the reasons for the population to address medical facilities of all departments, the causes of death.

ICD-10 was introduced into the practice of health care throughout the RF in 1999 by the order of the Ministry of Health of Russia of 27.05.97. №170

The release of the new revision ( ICD-11 ) is planned in 2017.