SNOMED CT Concept for Rett Syndrome

Clean terminology mapping is what lets a Rett syndrome diagnosis travel safely across your EHR, your referrals and your research datasets.

In short

In SNOMED CT, Rett syndrome is represented by the fully specified concept Rett's disorder (disorder), SCTID 68618008, a child of the X-linked dominant developmental encephalopathy hierarchy. It maps to ICD-11 LD90.0 (Rett syndrome, under Developmental anomalies / Syndromes with central nervous system involvement) and to the legacy ICD-10 F84.2. SNOMED CT gives you the clinically computable concept for the problem list and decision support; ICD-11 LD90.0 is your statistical and reporting code. Always confirm the current SCTID against your active SNOMED CT release, as concept status and synonyms are versioned.

Why the dual coding matters

Rett syndrome is a clinically diagnosed neurodevelopmental disorder, classically associated with pathogenic MECP2 variants, characterised by a period of apparently typical early development followed by regression — loss of purposeful hand use with stereotypic hand movements, gait abnormalities, and impaired language and social engagement. For interoperable records, the discipline is two-layered: capture the SNOMED CT concept (68618008) for the patient record and clinical reasoning, and the ICD-11 linearisation code (LD90.0) for morbidity coding and notification. SNOMED CT's hierarchy lets you retrieve the condition alongside related encephalopathies and link it to genetic findings; the ICD-11 code preserves comparability in national health statistics under the Indian context. Where downstream therapy planning is needed, the functional picture — communication, motor, sensory and self-care — is described in the WHO ICF framework, which complements rather than replaces the diagnostic code.

The Pinnacle way

Coding identifies a condition; it does not establish one for a given child. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from a code or an online form. For families navigating a confirmed or suspected Rett presentation, we translate the diagnosis into a functional, domain-by-domain plan. Explore [how Pinnacle supports development](/), our occupational therapy and speech therapy pathways, and what the AbilityScore is and how it is established.

Trusted sources

WHO ICD-11 entry for Rett syndrome (LD90.0); SNOMED International concept browser for Rett's disorder; WHO International Classification of Functioning, Disability and Health (ICF) for the functional layer.

Next step — Confirm the SCTID in your active SNOMED CT release, then [partner with a Pinnacle centre](/) to convert the diagnosis into a functional therapy plan.

This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.