{"h1":"ICD-11 Classification of Dyscalculia (6A03.2)","faq":[{"a":"Dyscalculia is classified under ICD-11-MMS as 6A03.2 — Developmental learning disorder with impairment in mathematics, within the 6A03 developmental learning disorder category of neurodevelopmental disorders.","q":"What is the ICD-11 code for Dyscalculia?"},{"a":"The 6A03.2 specifier requires that mathematical attainment is substantially below expectation for chronological age and not better explained by intellectual disability, sensory or neurological impairment, or inadequate instruction — making it a specific rather than global difficulty.","q":"How does ICD-11 distinguish Dyscalculia from a general learning delay?"},{"a":"Yes. It frequently co-occurs with developmental learning disorder with impairment in reading (6A03.0) and with ADHD, which is why a multi-domain clinician-administered profile is recommended over a single-skill assessment.","q":"Can Dyscalculia co-occur with other learning disorders?"}],"lang":"en","slug":"what-is-the-icd-11-classification-for-dyscalculia-mathematics-impairment","title":"ICD-11 Classification of Dyscalculia (6A03.2)","entity":{"key":"dyscalculia","kind":"condition","name":"Dyscalculia (Mathematics Impairment)","slug":null},"lenses":[{"kind":"stakeholder","label":"Doctor","value":"doctor"},{"kind":"domain","label":"Cognitive","value":"cognitive"},{"kind":"intent","label":"Definition","value":"definition"},{"kind":"lifecycle","label":"Screen","value":"screen"},{"kind":"route","label":"Special-Education","value":"special-education"},{"kind":"empowerment","label":"Early Clarity","value":"early_clarity"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"what-are-the-types-or-levels-of-dyscalculia-mathematics-impairment","title":"What are the types or levels of Dyscalculia?"},{"lang":"en","slug":"what-are-the-known-contributing-factors-for-dyscalculia-mathematics-impairment-in-early-childhood","title":"Contributing Factors for Dyscalculia in Early Childhood"},{"lang":"en","slug":"what-is-dyscalculia-mathematics-impairment","title":"What is Dyscalculia (Mathematics Impairment)?"},{"lang":"en","slug":"which-icf-functioning-domains-does-dyscalculia-mathematics-impairment-affect-in-early-childhood","title":"Dyscalculia across ICF functioning domains in early childhood"},{"lang":"en","slug":"how-does-dyscalculia-mathematics-impairment-affect-a-child-s-cognitive-development","title":"How Dyscalculia Affects a Child's Cognitive Development"},{"lang":"en","slug":"what-is-dyscalculia-mathematics-impairment-and-what-are-its-icd-11-features-in-early-childhood","title":"Dyscalculia (Mathematics Impairment): ICD-11 6A03.2 in early childhood"}],"summary":"In ICD-11-MMS, Dyscalculia is coded 6A03.2 — Developmental learning disorder with impairment in mathematics — under the parent category 6A03 within neurodevelopmental disorders. It denotes persistent, significant difficulty acquiring mathematical skills not explained by intellectual disability, sensory or neurological impairment, or inadequate schooling.","answer_md":"*A child who struggles to grasp number sense or master arithmetic isn't lazy or inattentive — they may be presenting with a specific, recognised learning difference.*\n\n## In short\nIn **ICD-11-MMS**, Dyscalculia is classified as **6A03.2 — Developmental learning disorder with impairment in mathematics**, sitting under the parent category *6A03 Developmental learning disorder* within neurodevelopmental disorders. It denotes significant and persistent difficulties acquiring mathematical skills — number sense, memorisation of arithmetic facts, accurate calculation and fluent reasoning — that fall substantially below expectation for chronological age and are not better accounted for by intellectual disability, sensory impairment, neurological disorder, inadequate schooling or lack of access to instruction.\n\n## The clinical picture\nThe 6A03.2 specifier applies when mathematical attainment is markedly below the level expected, persists despite appropriate intervention, and materially affects academic, occupational or daily functioning. Onset is during the developmental period, though impairment may only become evident once mathematical demands exceed the individual's capacity. Common presentations include:\n\n- Poor sense of number magnitude and difficulty with subitising or estimation\n- Persistent reliance on counting strategies and weak retrieval of arithmetic facts\n- Errors in calculation procedures and multi-step mathematical reasoning\n- Difficulty with the mathematical and quantitative aspects of everyday tasks\n\nDyscalculia frequently co-occurs with developmental learning disorder with impairment in reading (6A03.0) and with ADHD, so a structured, multi-domain profile is preferable to a single-skill snapshot.\n\n## When to refer\nConsider formal assessment when mathematical difficulties are disproportionate to overall ability, persist across at least several months of targeted support, and cannot be explained by schooling gaps or another condition. Differentiate from acquired acalculia (neurological) and from global delay before assigning the developmental specifier.\n\n## The Pinnacle way\nA clinical AbilityScore® and any formal diagnosis are established **only at a Pinnacle Blooms Network centre, under qualified clinician care** — never from an online form. Our structured, clinician-administered assessment profiles cognition and learning alongside communication and attention, so a mathematics impairment is read in context rather than isolation. Explore our approach to [learning and developmental support](/), [special education and learning therapy](/special-education), and [how the AbilityScore is formed](/ask/what-is-the-abilityscore-and-how-is-it-calculated).\n\n## Trusted sources\nWHO ICD-11 for Mortality and Morbidity Statistics, category 6A03 Developmental learning disorder; WHO ICF framework of functioning.\n\n**Next step —** For a child showing persistent maths difficulties, [arrange a structured developmental assessment with a Pinnacle clinician](/special-education).\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-dyscalculia-mathematics-impairment","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-dyscalculia-mathematics-impairment","lang":"en","indexable":true},{"href":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-dyscalculia-mathematics-impairment-te","lang":"te","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Dyscalculia ICD-11 Classification (6A03.2)","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"When a child avoids or finds maths disproportionately hard relative to other skills, note whether the gap persists across settings and over time — pattern and persistence matter more than a single bad test.","published_at":"2026-06-10T10:52:00.07543+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"what-is-dyscalculia-mathematics-impairment-and-what-are-its-icd-11-features-in-early-childhood","title":"Dyscalculia (Mathematics Impairment): ICD-11 6A03.2 in early childhood","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-dyscalculia-mathematics-impairment","title":"What is Dyscalculia (Mathematics Impairment)?","reason":"Linked from this answer"},{"lang":"en","slug":"what-are-the-types-or-levels-of-dyscalculia-mathematics-impairment","title":"What are the types or levels of Dyscalculia?","reason":"Linked from this answer"},{"lang":"en","slug":"which-icf-functioning-domains-does-dyscalculia-mathematics-impairment-affect-in-early-childhood","title":"Dyscalculia across ICF functioning domains in early childhood","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-snomed-ct-concept-for-dyscalculia-mathematics-impairment","title":"SNOMED CT Concept for Dyscalculia (Mathematics Impairment)","reason":"Same topic"},{"lang":"en","slug":"how-does-dyscalculia-mathematics-impairment-affect-a-child-s-daily-life","title":"How Dyscalculia Affects a Child's Daily Life","reason":"Same topic"},{"lang":"en","slug":"is-dyscalculia-mathematics-impairment-considered-a-disability","title":"Is Dyscalculia Considered a Disability?","reason":"Same topic"},{"lang":"en","slug":"is-dyscalculia-mathematics-impairment-genetic-or-hereditary","title":"Is Dyscalculia Genetic or Hereditary?","reason":"Same topic"},{"lang":"en","slug":"what-are-common-myths-about-dyscalculia-mathematics-impairment","title":"What are common myths about Dyscalculia?","reason":"Same topic"},{"lang":"en","slug":"what-causes-dyscalculia-mathematics-impairment-in-children","title":"What causes dyscalculia in children?","reason":"Same topic"},{"lang":"en","slug":"what-does-current-research-show-about-early-intervention-outcomes-for-dyscalculia-mathematics-impairment-in-children-under-7","title":"Early Intervention Outcomes for Dyscalculia Under 7","reason":"Same topic"},{"lang":"en","slug":"what-is-dyscalculia-mathematics-impairment-and-what-does-it-look-like-in-early-childhood","title":"Dyscalculia (Mathematics Impairment) in Early Childhood","reason":"Same topic"}],"label":"Understand the subject","total":13},{"key":"signs","items":[{"lang":"en","slug":"what-clinical-red-flags-for-dyscalculia-mathematics-impairment-warrant-referral-in-a-young-child","title":"Dyscalculia: clinical red flags for referral in young children","reason":"Same topic"},{"lang":"en","slug":"what-early-indicators-of-dyscalculia-mathematics-impairment-should-a-paediatrician-watch-for","title":"Early indicators of dyscalculia for paediatricians","reason":"Same topic"},{"lang":"en","slug":"when-should-a-doctor-refer-a-child-with-suspected-dyscalculia-mathematics-impairment-for-developmental-therapy","title":"When to refer suspected dyscalculia for developmental therapy","reason":"Same topic"},{"lang":"en","slug":"can-dyscalculia-mathematics-impairment-be-cured","title":"Can Dyscalculia Be Cured?","reason":"Same topic"},{"lang":"en","slug":"can-dyscalculia-mathematics-impairment-be-prevented","title":"Can Dyscalculia Be Prevented?","reason":"Same topic"},{"lang":"en","slug":"do-boys-show-dyscalculia-mathematics-impairment-differently","title":"Do boys show Dyscalculia differently?","reason":"Same topic"},{"lang":"en","slug":"do-girls-show-dyscalculia-mathematics-impairment-differently","title":"Do girls show dyscalculia differently?","reason":"Same topic"},{"lang":"en","slug":"how-can-a-frontline-health-worker-spot-a-child-with-possible-dyscalculia-mathematics-impairment-early","title":"How a Frontline Health Worker Can Spot Possible Dyscalculia Early","reason":"Same topic"},{"lang":"en","slug":"should-i-be-worried-my-child-might-have-dyscalculia-mathematics-impairment","title":"Should I be worried my child might have dyscalculia?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-dyscalculia-mathematics-impairment","title":"Early Signs of Dyscalculia (Mathematics Impairment)","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-dyscalculia-mathematics-impairment-in-a-1-year-old-boy","title":"Early signs of dyscalculia in a 1-year-old boy","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-dyscalculia-mathematics-impairment-in-a-1-year-old-girl","title":"Early Signs of Dyscalculia in a 1-Year-Old Girl","reason":"Same topic"}],"label":"Recognise signs & concerns","total":47},{"key":"causes","items":[{"lang":"en","slug":"what-are-the-known-contributing-factors-for-dyscalculia-mathematics-impairment-in-early-childhood","title":"Contributing Factors for Dyscalculia in Early Childhood","reason":"Linked from this answer"},{"lang":"en","slug":"how-does-dyscalculia-mathematics-impairment-affect-a-child-s-cognitive-development","title":"How Dyscalculia Affects a Child's Cognitive Development","reason":"Linked from this answer"},{"lang":"en","slug":"are-boys-more-likely-to-have-dyscalculia-mathematics-impairment","title":"Are boys more likely to have dyscalculia?","reason":"Same topic"},{"lang":"en","slug":"are-girls-more-likely-to-have-dyscalculia-mathematics-impairment","title":"Are girls more likely to have dyscalculia?","reason":"Same topic"},{"lang":"en","slug":"how-does-early-intervention-for-dyscalculia-mathematics-impairment-advance-un-child-rights-uncrpd-and-the-sdgs","title":"Early Intervention for Dyscalculia: Advancing UNCRPD & the SDGs","reason":"Same topic"},{"lang":"en","slug":"what-causes-dyscalculia-mathematics-impairment-in-young-children","title":"What Causes Dyscalculia in Young Children?","reason":"Same topic"},{"lang":"en","slug":"what-is-the-cost-effectiveness-of-early-therapy-for-dyscalculia-mathematics-impairment-in-young-children","title":"Cost-Effectiveness of Early Therapy for Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-is-the-prevalence-and-public-health-burden-of-dyscalculia-mathematics-impairment-among-young-children-in-india","title":"Dyscalculia in India: Prevalence and Public-Health Burden","reason":"Same topic"}],"label":"Explore causes & influences","total":8},{"key":"assess","items":[{"lang":"en","slug":"what-is-the-recommended-screening-and-diagnostic-pathway-for-dyscalculia-mathematics-impairment-in-children-under-7","title":"Dyscalculia Screening & Diagnostic Pathway Under 7","reason":"Same topic"},{"lang":"en","slug":"how-does-abilityscore-track-progress-in-a-child-with-dyscalculia-mathematics-impairment","title":"How AbilityScore Tracks Progress in a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"how-is-dyscalculia-mathematics-impairment-assessed-in-a-young-child","title":"How Dyscalculia Is Assessed in a Young Child","reason":"Same topic"},{"lang":"en","slug":"how-is-dyscalculia-mathematics-impairment-assessed-in-children-under-7","title":"How is Dyscalculia Assessed in Children Under 7?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-0-100-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What an AbilityScore Means for a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-100-200-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What an AbilityScore of 100–200 means for a child with dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-200-300-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"AbilityScore® 200–300 in Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-300-400-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"AbilityScore 300–400 in Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-400-500-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What an AbilityScore of 400–500 means for a child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-500-600-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What an AbilityScore of 500–600 Means for a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-600-700-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What does an AbilityScore of 600–700 mean for a child with Dyscalculia?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-700-800-mean-for-a-child-with-dyscalculia-mathematics-impairment","title":"What an AbilityScore® of 700–800 Means in Dyscalculia","reason":"Same topic"}],"label":"Understand assessment","total":16},{"key":"therapy","items":[{"lang":"en","slug":"as-a-grandparent-or-caregiver-how-can-i-support-a-child-with-dyscalculia-mathematics-impairment-day-to-day","title":"How Caregivers Can Support a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-dyscalculia-mathematics-impairment-attend-a-mainstream-school","title":"Can a Child with Dyscalculia Attend a Mainstream School?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-dyscalculia-mathematics-impairment-attend-a-regular-school","title":"Can a Child with Dyscalculia Attend a Regular School?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-dyscalculia-mathematics-impairment-grow-up-to-live-independently","title":"Can a Child With Dyscalculia Live Independently?","reason":"Same topic"},{"lang":"en","slug":"how-can-a-classroom-teacher-help-a-child-with-dyscalculia-mathematics-impairment-take-part-and-learn","title":"How a Teacher Can Help a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-dyscalculia-mathematics-impairment","title":"Dyscalculia early intervention for under-7s: a district pathway","reason":"Same topic"},{"lang":"en","slug":"how-can-a-teacher-include-and-support-a-young-child-with-dyscalculia-mathematics-impairment-in-a-mainstream-classroom","title":"How a teacher can include and support a child with dyscalculia","reason":"Same topic"},{"lang":"en","slug":"how-can-we-support-cognitive-development-in-a-child-with-dyscalculia-mathematics-impairment","title":"How to Support Cognitive Development in a Child with Dyscalculia","reason":"Same topic"},{"lang":"en","slug":"how-does-therapy-help-a-child-with-dyscalculia-mathematics-impairment-make-progress","title":"How therapy helps a child with dyscalculia make progress","reason":"Same topic"},{"lang":"en","slug":"how-is-dyscalculia-mathematics-impairment-diagnosed-in-a-child","title":"How Dyscalculia Is Diagnosed in a Child","reason":"Same topic"},{"lang":"en","slug":"how-is-dyscalculia-mathematics-impairment-supported-through-therapy","title":"How is Dyscalculia supported through therapy?","reason":"Same topic"},{"lang":"en","slug":"my-child-with-dyscalculia-mathematics-impairment-has-an-abilityscore-of-0-100-what-should-we-do-next","title":"Dyscalculia AbilityScore — What to Do Next","reason":"Same topic"}],"label":"Explore therapy & support","total":61},{"key":"home","items":[{"lang":"en","slug":"how-can-i-support-my-child-with-dyscalculia-mathematics-impairment-at-home","title":"How can I support my child with Dyscalculia at home?","reason":"Same topic"}],"label":"At home & in everyday life","total":1}],"what_to_watch":"Mathematical attainment markedly below age expectation, persistent reliance on counting, weak arithmetic-fact retrieval, and difficulty with quantitative everyday tasks that persist despite targeted support.","authority_links":[{"url":"https://icd.who.int/","code":"6A03.2","label":"WHO ICD-11 — Developmental learning disorder (6A03)"},{"url":"https://www.who.int/standards/classifications/frequently-asked-questions/international-classification-of-functioning-disability-and-health","label":"WHO ICF framework of functioning"}],"last_reviewed_at":"2026-06-10T10:52:00.07543+00:00","meta_description":"ICD-11-MMS classifies Dyscalculia as 6A03.2 — Developmental learning disorder with impairment in mathematics. A clinician-focused definition and referral g","related_materials":[],"related_techniques":[]}