# What is the SNOMED CT concept for Autism Spectrum?

Canonical: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-autism-spectrum
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

In SNOMED CT, autism spectrum is represented by concept 408856003 | Autism spectrum disorder (disorder), historically under 35919005 | Pervasive developmental disorder. It maps to WHO ICD-11 6A02, which unifies the former DSM-IV/ICD-10 subtypes into a single spectrum construct.

*Clinicians coding paediatric developmental presentations need the right concept identifier — here is the SNOMED CT term for autism spectrum and how it maps across systems.*

## In short
In SNOMED CT, autism spectrum is represented by the concept **35919005 | Pervasive developmental disorder (disorder)** as the historical parent, with the contemporary preferred concept being **408856003 | Autism spectrum disorder (disorder)**. This SNOMED CT concept maps to **ICD-11 6A02 Autism spectrum disorder** and supersedes the older DSM-IV-era subtypes (autistic disorder, Asperger syndrome, PDD-NOS) now subsumed under a single spectrum construct. Always confirm the exact subtype concept and current SNOMED CT release, as the international edition is updated biannually and country extensions (including the India edition) may differ.

## The coding detail
SNOMED CT consolidates the spectrum under **408856003 | Autism spectrum disorder (disorder)**, with finer-grained children where clinically required. Key cross-references for your records:

- **SNOMED CT preferred term:** 408856003 · *Autism spectrum disorder (disorder)*
- **ICD-11 (WHO):** 6A02 · *Autism spectrum disorder*, with severity and language/intellectual-functioning qualifiers via the 6A02.0–6A02.5 sub-codes
- **Functioning frame:** WHO ICF, capturing activity and participation rather than deficit alone

Note that ICD-11 replaced ICD-10's F84 cluster (childhood autism, atypical autism, Asperger syndrome) with the unified 6A02 hierarchy — so when migrating legacy records, map ICD-10 F84.0–F84.9 to the appropriate 6A02 sub-code rather than one-to-one. SNOMED-to-ICD maps are maintained in the official map reference sets; rely on those rather than manual crosswalks for billing and reporting fidelity.

## When to refer
Coding aside, refer for structured assessment when social-communication differences and restricted, repetitive behaviours persist across settings and are not better explained by hearing loss or global delay. NICE CG128 supports a multidisciplinary diagnostic pathway; act promptly on any skill regression or persistent parental concern.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from a code lookup or an online tool. For referring clinicians, our network offers [structured multidisciplinary assessment](/) and a [clinician-administered AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) to baseline functioning, plus coordinated [speech and language therapy](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate) pathways. With 2.5 billion+ data points, 25 million+ therapy sessions and 700+ therapists across 70+ centres, we partner with paediatricians to move from recognition to intervention.

## Trusted sources
WHO ICD-11 (6A02, Autism spectrum disorder); SNOMED International concept hierarchy; NICE CG128 on autism recognition and diagnosis; American Academy of Pediatrics developmental guidance; NIMHANS autism clinical resources.

**Next step —** Refer a child for structured assessment, or [partner with a Pinnacle centre](/) to streamline your developmental pathway.

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

## Sources
- WHO ICD-11 — Autism spectrum disorder: https://icd.who.int/browse11
- NICE CG128 — Autism recognition and diagnosis: https://www.nice.org.uk/guidance/cg128
- American Academy of Pediatrics — HealthyChildren.org: https://www.healthychildren.org
- NIMHANS — autism clinical resources: https://nimhans.ac.in
- CDC — Learn the Signs. Act Early.: https://www.cdc.gov/child-development

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Doctor: https://pinnacleblooms.org/ask/lens/stakeholder/doctor
- Social: https://pinnacleblooms.org/ask/lens/domain/social
- Definition: https://pinnacleblooms.org/ask/lens/intent/definition
- Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen
- Autism Therapy: https://pinnacleblooms.org/ask/lens/route/autism-therapy
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

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