Human Diseases in ICD-11 Classification

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1st Level  2nd Level  3rd Level  4th Level  5th Level  6th Level  7th Level  8th Level 

 01 Certain infectious or parasitic diseases
 02 Neoplasms
 03 Diseases of the blood or blood-forming organs
 04 Diseases of the immune system
 05 Endocrine, nutritional or metabolic diseases
 06 Mental, behavioural or neurodevelopmental disorders
   Neurodevelopmental disorders
   Schizophrenia or other primary psychotic disorders
   Mood disorders
   Anxiety or fear-related disorders
   Obsessive-compulsive or related disorders
     6B20  Obsessive-compulsive disorder
       H01450  Obsessive-compulsive disorder
     6B21  Body dysmorphic disorder
     6B22  Olfactory reference disorder
     6B23  Hypochondriasis
     6B24  Hoarding disorder
     6B25  Body-focused repetitive behaviour disorders
     6B2Y  Other specified obsessive-compulsive or related disorders
     6B2Z  Obsessive-compulsive or related disorders, unspecified
   Disorders specifically associated with stress
   Dissociative disorders
   Feeding or eating disorders
   Elimination disorders
   Disorders of bodily distress or bodily experience
   Disorders due to substance use or addictive behaviours
   Impulse control disorders
   Disruptive behaviour or dissocial disorders
   Personality disorders and related traits
   Paraphilic disorders
   Factitious disorders
   Neurocognitive disorders
   Mental or behavioural disorders associated with pregnancy, childbirth or the puerperium
   6E40  Psychological or behavioural factors affecting disorders or diseases classified elsewhere
   Secondary mental or behavioural syndromes associated with disorders or diseases classified elsewhere
   6E8Y  Other specified mental, behavioural or neurodevelopmental disorders
   6E8Z  Mental, behavioural or neurodevelopmental disorders, unspecified
 07 Sleep-wake disorders
 08 Diseases of the nervous system
 09 Diseases of the visual system
 10 Diseases of the ear or mastoid process
 11 Diseases of the circulatory system
 12 Diseases of the respiratory system
 13 Diseases of the digestive system
 14 Diseases of the skin
 15 Diseases of the musculoskeletal system or connective tissue
 16 Diseases of the genitourinary system
 17 Conditions related to sexual health
 18 Pregnancy, childbirth or the puerperium
 19 Certain conditions originating in the perinatal period
 20 Developmental anomalies
 21 Symptoms, signs or clinical findings, not elsewhere classified
 22 Injury, poisoning or certain other consequences of external causes

Last updated: January 16, 2021
ICD-11 by World Health Organization

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