Congenital malformations, deformities, and chromosomal abnormalities (Q00-Q99).
- Fragile X syndrome (Martin-Bell syndrome) – X-linked inherited syndrome in which the main malformations are: large auricles, large genitalia, sterility, and mental retardation.
Psyche – Nervous System (F00-F99; G00-G99).
- Affective disorders (affect disorders) – group of mental disorders characterized primarily by a clinically significant change in mood.
- Aphasia (speech disorder; “speechlessness”).
- Attention-deficit/hyperactivity disorder (ADHD).
- Attachment disorders
- Emotional and anxiety disorders
- Hearing muteness – muteness despite an intact hearing.
- Catalepsy – persistence in a particular posture.
- Mutism – muteness with the speech organ intact.
- Oligophrenia – mental retardation with intelligence reduction.
- Oppositional behavior / social behavior disorder
- Personality disorders
- Mental hospitalism (deprivation syndrome; synonyms: Hospitalism syndrome, hospital damage, deprivation syndrome, anaclitic depression, or emotional/mental deprivation) – developmental delays and developmental disorders associated with prolonged hospital or institutionalization.
- Psychotic disorders
- Rett syndrome – genetic disorder with X-linked dominant inheritance; developmental disorder – occurring almost exclusively in girls – due to encephalopathy (pathological changes in the brain); in male embryos, hemizygosity (condition in which only one allele of a gene occurs in the otherwise duplicate (diploid) set of chromosomes) almost always leads to intrauterine fetal death (death of the unborn child)
- Savant syndrome (insular giftedness) – people who have a cognitive disability or other severe developmental disorder can perform very specific exceptional performance in a small subarea (“islands”); about 50% of insular gifted people are autistic; sporadic occurrence.
- Schizoid personality disorder
- Schizophrenia – severe mental illness belonging to the endogenous psychoses and characterized by disturbances of thinking, perception and affectivity.
- Stereotypic movement disorder
- Language development disorders, late developers
- Tic disorders – repeated occurrence of involuntary contractions of individual muscles or muscle groups.
- Obsessive-compulsive disorders
