{"h1":"ICD-11 Classification of Tourette Syndrome (8A05.00)","faq":[{"a":"Tourette Syndrome is coded 8A05.00 in ICD-11-MMS, within the parent category 8A05 Tic disorders.","q":"What is the ICD-11 code for Tourette Syndrome?"},{"a":"ICD-11 anchors tic disorders (8A05) in Diseases of the nervous system (Chapter 08), with secondary parenting under neurodevelopmental disorders, reflecting their neurodevelopmental nature.","q":"Where does ICD-11 place tic disorders?"},{"a":"In ICD-10, Tourette syndrome was F95.2 within behavioural and emotional disorders. ICD-11 reframes it as a neurodevelopmental nervous-system condition, signalling the current diagnostic consensus.","q":"How does this differ from ICD-10?"},{"a":"Multiple motor tics and at least one phonic (vocal) tic, present for over a year with onset in childhood or adolescence, typically with a waxing-and-waning course.","q":"What are the diagnostic requirements?"}],"lang":"en","slug":"what-is-the-icd-11-classification-for-tourette-syndrome","title":"ICD-11 Classification of Tourette Syndrome","entity":{"key":"tourette","kind":"condition","name":"Tourette Syndrome","slug":null},"lenses":[{"kind":"stakeholder","label":"Doctor","value":"doctor"},{"kind":"domain","label":"Motor","value":"motor"},{"kind":"intent","label":"Definition","value":"definition"},{"kind":"lifecycle","label":"Screen","value":"screen"},{"kind":"route","label":"Screen","value":"screen"},{"kind":"empowerment","label":"Early Clarity","value":"early_clarity"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"what-early-indicators-of-tourette-syndrome-should-a-paediatrician-watch-for","title":"Early indicators of Tourette Syndrome for paediatricians"},{"lang":"en","slug":"what-is-tourette-syndrome","title":"What is Tourette Syndrome?"},{"lang":"en","slug":"which-ichi-health-interventions-apply-to-tourette-syndrome-in-young-children","title":"Which ICHI Interventions Apply to Tourette Syndrome in Young Children?"},{"lang":"en","slug":"what-is-the-recommended-screening-and-diagnostic-pathway-for-tourette-syndrome-in-children-under-7","title":"Tourette Syndrome Screening & Diagnostic Pathway (Under 7)"},{"lang":"en","slug":"what-is-the-snomed-ct-concept-for-tourette-syndrome","title":"SNOMED CT Concept for Tourette Syndrome"},{"lang":"en","slug":"what-is-tourette-syndrome-and-what-are-its-icd-11-features-in-early-childhood","title":"What is Tourette Syndrome, and what are its ICD-11 features in early childhood?"}],"summary":"In ICD-11-MMS, Tourette Syndrome is coded 8A05.00 within the parent category 8A05 Tic disorders. ICD-11 places tic disorders in Diseases of the nervous system (Chapter 08) with secondary parenting under neurodevelopmental disorders, requiring multiple motor tics plus at least one phonic tic, persistent over a year with childhood onset.","answer_md":"*A precise diagnostic code is the foundation of every shared-care conversation — here is exactly where Tourette Syndrome sits in ICD-11.*\n\n## In short\nIn the WHO **ICD-11-MMS**, Tourette Syndrome carries the code **8A05.00**, sitting within the parent category **8A05 *Tic disorders***. ICD-11 has relocated tic disorders from the older mental-and-behavioural grouping into **Diseases of the nervous system (Chapter 08)**, while retaining a cross-listing with neurodevelopmental disorders — a deliberate reflection of its neurodevelopmental nature. The diagnosis requires both multiple motor tics and at least one phonic (vocal) tic, present for over a year with onset in childhood or adolescence.\n\n## The classification, in detail\nUnder **8A05 Tic disorders**, ICD-11 distinguishes:\n- **8A05.00 Tourette syndrome** — combined chronic motor and phonic tics meeting the duration and onset criteria.\n- Related sibling categories for chronic motor-only or phonic-only tic disorders and transient/developmental tic presentations.\n\nKey ICD-11 features worth noting for peer-to-peer use:\n- **Multi-parenting**: 8A05 is anchored in the nervous-system chapter yet secondary-parented under neurodevelopmental disorders, so the code surfaces from either pathway.\n- **Onset and course**: childhood onset, characteristic waxing-and-waning course, frequent attenuation by adulthood.\n- **Comorbidity coding**: ADHD (6A05) and obsessive-compulsive disorder (6B20) are commonly co-occurring and should be coded separately where present, as they often drive functional impairment more than the tics themselves.\n\nThis contrasts with ICD-10, where Tourette sat under F95.2 within behavioural and emotional disorders — the ICD-11 move signals the consensus shift toward a neurodevelopmental framing.\n\n## When to refer\nRefer for structured developmental and neurological assessment where tics are persistent (>12 months), cause functional or social impairment, or co-occur with attentional, obsessive-compulsive or emotional-regulation difficulties. Sudden-onset, explosive, or focal-neurological presentations warrant prompt neurology review rather than therapy-first pathways.\n\n## The Pinnacle way\nAbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from a code lookup or an online form. For a child with tics and co-occurring profiles, our [behavioural and developmental therapy pathways](/behavioural-therapy) and a [clinician-administered AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) translate the diagnostic picture into a measurable, family-ready plan. [Partner with Pinnacle](/) for shared-care across 70+ centres.\n\n## Trusted sources\nWHO ICD-11 for Mortality and Morbidity Statistics, tic disorders category; WHO classification framework for neurodevelopmental and nervous-system disorders.\n\n**Next step —** Refer a child with persistent tics for structured assessment — [connect with a Pinnacle clinical team](/).\n\nThis is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.","canonical":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-tourette-syndrome","editorial":{"reviewed_at":"2026-06-11T20:12:18.613642+00:00","reviewed_by":null,"developed_by":"SETU Consortium · Pinnacle Blooms Network"},"alternates":[{"href":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-tourette-syndrome","lang":"en","indexable":true},{"href":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-tourette-syndrome-te","lang":"te","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Tourette Syndrome ICD-11 Code 8A05.00","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"When coding, capture co-occurring ADHD (6A05) or OCD (6B20) separately — comorbidities frequently shape the functional and therapeutic priorities more than the tics alone.","published_at":"2026-06-10T10:52:00.07543+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"what-is-tourette-syndrome-and-what-are-its-icd-11-features-in-early-childhood","title":"What is Tourette Syndrome, and what are its ICD-11 features in early childhood?","reason":"Linked from this 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themselves.","authority_links":[{"url":"https://icd.who.int/","code":"8A05.00","label":"WHO ICD-11 for Mortality and Morbidity Statistics"},{"url":"https://www.who.int/","label":"World Health Organization — classification frameworks"}],"last_reviewed_at":"2026-06-10T10:52:00.07543+00:00","meta_description":"Tourette Syndrome is classified as 8A05.00 in ICD-11-MMS, under 8A05 Tic disorders — a neurodevelopmental nervous-system condition. Clinical reference.","related_materials":[],"related_techniques":[]}