SNOMED CT Concept for Conduct-Dissocial Disorder

When two coding systems describe the same child, mapping matters — here's how Conduct-Dissocial Disorder sits across ICD-11 and SNOMED CT.

In short

Conduct-Dissocial Disorder is the ICD-11 term (code 6C91) for a persistent, repetitive pattern of behaviour that violates age-appropriate social norms, rules or the basic rights of others. SNOMED CT does not carry a single concept labelled "Conduct-Dissocial Disorder" verbatim; the nearest active SNOMED CT International concept is Conduct disorder (disorder), with related concepts such as Socialised conduct disorder and Unsocialised conduct disorder. Always confirm the current concept ID and any ICD-11–to–SNOMED CT map within your live terminology server, as identifiers and mappings are versioned and can change.

The science, briefly

ICD-11 reorganised the former ICD-10 conduct-disorder family into Conduct-dissocial disorder (6C91), distinguishing childhood-onset from adolescent-onset and qualifying the presence of limited prosocial emotions. SNOMED CT, by contrast, is a clinical reference terminology built for the electronic record — it represents Conduct disorder as a fully defined concept with descendants for socialised and unsocialised presentations. Because the two systems were designed for different purposes (classification versus point-of-care recording), there is no guaranteed one-to-one equivalence: a single ICD-11 entity may map to several SNOMED CT concepts, or via an approximate ("target broader/narrower") map. For interoperability work, retrieve the concept directly from the SNOMED CT International or India edition browser rather than hard-coding an identifier.

When this matters clinically

• EHR coding — record the behavioural pattern with the SNOMED CT Conduct disorder concept, and reserve 6C91 for ICD-11 statistical or claims reporting.
• Differential framing — distinguish from oppositional defiant disorder (6C90) and from disorders better explained by an emerging neurodevelopmental or trauma profile.
• Referral — co-occurring developmental, communication or regulation difficulties in a child warrant a structured developmental assessment, not a behavioural label alone.

The Pinnacle way

A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from a code lookup or an online form. Where conduct concerns coexist with developmental, communication or emotional-regulation needs, our behavioural and developmental therapy pathways and child development assessment bring structure to what a parent or referrer first noticed.

Trusted sources

WHO ICD-11 for Mortality and Morbidity Statistics, entity 6C91 Conduct-dissocial disorder; WHO ICD-11–SNOMED CT mapping guidance. Verify the active SNOMED CT concept and identifier in your edition's terminology server.

Next step — Working on terminology mapping or a referral pathway? Partner with Pinnacle Blooms Network for clinician-governed developmental assessment.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.