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Conduct-Dissocial Disorder (ICD-11 6C91): Early-Childhood Features
Conduct-Dissocial Disorder (ICD-11 6C91) is a repetitive, persistent pattern of behaviour violating others' rights or major age-appropriate norms. In early childhood it is diagnosed cautiously, requires an enduring pervasive pattern beyond developmental expectation, and must be differentiated from ODD, ADHD, language disorder and trauma.
In this answer 4 sections
A young child with conduct concerns is more often signalling unmet developmental need than "defiance" — and the distinction matters clinically.
In short
Conduct-Dissocial Disorder (ICD-11 6C91) is characterised by a repetitive, persistent pattern of behaviour that violates the basic rights of others or major age-appropriate societal norms — aggression, destructiveness, deceitfulness, serious rule-breaking — sustained over time and beyond ordinary childhood mischief. In early childhood the diagnosis is applied cautiously: many presentations reflect developmental, language, attentional or regulatory difficulties rather than an entrenched conduct pattern.
The ICD-11 picture in early childhood
In preschool and early-school children, features cluster as:
- Aggression to people or animals — frequent severe tantrums, hitting, biting, cruelty disproportionate to context
- Destructiveness — deliberate breaking of property
- Deceit or theft beyond age-typical fibbing
- Serious norm violation — persistent defiance and rule-breaking across settings (home and nursery)
ICD-11 requires the pattern to be enduring (commonly ~12 months), pervasive across contexts, and clearly beyond developmental expectation — not a single phase or reaction to acute stress. Differentiate from Oppositional Defiant Disorder (6C90), ADHD, language disorder, trauma and intellectual disability, which frequently co-occur and shape presentation. The limited prosocial emotions qualifier flags a higher-risk subgroup.
The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online tool. We profile the child's conduct-dissocial presentation alongside language, attention and regulation through behavioural therapy and a structured clinician-administered assessment.
Trusted sources
WHO ICD-11 Mortality and Morbidity Statistics, category 6C91; WHO ICF framework for functioning-based formulation.
Next step — Refer early-childhood conduct concerns for structured developmental assessment rather than behavioural management alone — partner with a Pinnacle centre.
This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.
CONNECT THE ANSWER TO YOUR CHILD’S DAY
Something to notice. Something to discuss.
What to notice
Persistent aggression, destructiveness or rule-violation across both home and nursery, sustained beyond a phase and disproportionate to developmental level — especially with reduced prosocial emotions.
In everyday life
Distinguish a pervasive pattern from situational reactivity: ask whether the behaviour appears in more than one setting and has persisted over many months.
Bring your observations and questions to your child’s professional. Choose activities that suit your child’s comfort, abilities and agreed plan.
Bring your questions to a first visitQuestions families ask
How does Conduct-Dissocial Disorder differ from Oppositional Defiant Disorder?
ODD (6C90) centres on persistent defiance, irritability and argumentativeness, whereas Conduct-Dissocial Disorder (6C91) involves violation of others' basic rights or major societal norms — aggression, destructiveness, deceit or serious rule-breaking. The two can co-occur and exist on a continuum of severity.
Can Conduct-Dissocial Disorder be diagnosed in a preschool child?
It can be considered but is applied cautiously in early childhood. The pattern must be enduring, pervasive across settings and clearly beyond developmental expectation, with careful exclusion of language disorder, ADHD, trauma and intellectual disability.
What does the 'limited prosocial emotions' qualifier mean?
It identifies children showing reduced empathy, guilt or concern for performance — a subgroup associated with more persistent and severe trajectories, warranting earlier structured support.
FOLLOW THE SOURCE
References behind this answer.
- Source referenceWHO ICD-11 MMS — Conduct-Dissocial Disorder
- Source referenceWHO ICF functioning framework
References are supplied with this answer. An organisation homepage offers further reading; it does not establish an independent review of this page.
Content attribution: SETU Consortium · Pinnacle Blooms Network.
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