SNOMED CT Concept for Selective Mutism

Clean terminology mapping is the quiet backbone of every shared care record — so let's pin down where Selective Mutism actually sits.

In short

Selective Mutism is represented in SNOMED CT by the clinical finding concept "Selective mutism (disorder)", SCTID 31588003, which sits under disorders of psychological development and childhood-onset emotional/behavioural conditions. In ICD-11 the corresponding entity is 6B06 Selective mutism, within anxiety and fear-related disorders — the framing now favoured clinically over older "childhood disorder" placements. For interoperable records, SNOMED CT is your encoding terminology; ICD-11 is your classification for statistics, reporting and case definition.

The clinical picture, briefly

Selective mutism is characterised by a consistent failure to speak in specific social situations (typically school or with unfamiliar people) despite speaking normally in others (usually at home), persisting beyond a month and not limited to the first month of schooling. It is conceptualised as an anxiety-related presentation, not a speech-production or language disorder per se — hence the ICD-11 placement under anxiety and fear-related disorders (6B06). When coding, distinguish it from communication disorders, expressive/receptive language disorder, and autism-related communication differences, and confirm the child has age-appropriate language competence in comfortable settings before applying the concept.

When to refer

Refer when reduced or absent speech in select settings persists beyond the first month of school and interferes with education or social functioning. Co-assessment with speech-language pathology and child mental-health input is appropriate, and screen for co-occurring social anxiety, language difference, and hearing.

The Pinnacle way

Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online form or terminology lookup. Accurate concept mapping supports the record; the clinician interprets the child. Explore our speech therapy pathway, understand how the AbilityScore is established, and see the wider network and approach.

Trusted sources

WHO ICD-11 entity 6B06 Selective mutism (icd.who.int); SNOMED International concept model for clinical findings; ASHA guidance on selective mutism and speech-language assessment (asha.org).

Next step — Partner with Pinnacle for structured assessment and SNOMED/ICD-aligned reporting — connect with our clinical team.

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