{"h1":"Visual Impairment (ICD-11 9D90): Definition and Early-Childhood Features","faq":[{"a":"Visual impairment is coded 9D90 in ICD-11-MMS, with severity ranging from mild impairment to blindness based on best-corrected distance and near acuity and visual field in the better eye.","q":"What is the ICD-11 code for visual impairment?"},{"a":"Assessment in infants relies on behavioural and functional methods — fixation and following, preferential-looking, optokinetic nystagmus and visual reaching — so the functional profile often precedes a formal acuity grade.","q":"How is visual impairment assessed in infants who cannot read a chart?"},{"a":"Yes. Cortical or cerebral visual impairment is a leading paediatric cause and can co-exist with structurally normal eyes, so a normal ophthalmic exam does not exclude functionally significant impairment.","q":"Can a child have visual impairment with a normal eye exam?"}],"lang":"en","slug":"what-is-visual-impairment-and-what-are-its-icd-11-features-in-early-childhood","title":"What is Visual Impairment and its ICD-11 early-childhood features?","entity":{"key":"visual-impairment","kind":"condition","name":"Visual Impairment","slug":"visual-impairment"},"lenses":[{"kind":"stakeholder","label":"Doctor","value":"doctor"},{"kind":"domain","label":"Sensory","value":"sensory"},{"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-is-visual-impairment-and-what-does-it-look-like-in-early-childhood","title":"What is Visual Impairment, and what does it look like in early childhood?"},{"lang":"en","slug":"what-does-current-research-show-about-early-intervention-outcomes-for-visual-impairment-in-children-under-7","title":"Early Intervention Outcomes for Visual Impairment in Children Under 7"},{"lang":"en","slug":"how-is-visual-impairment-assessed-in-children-under-7","title":"How Visual Impairment Is Assessed in Children Under 7"},{"lang":"en","slug":"how-is-visual-impairment-assessed-in-a-young-child","title":"How Visual Impairment Is Assessed in a Young Child"},{"lang":"en","slug":"what-is-visual-impairment","title":"What is Visual Impairment?"},{"lang":"en","slug":"what-is-the-icd-11-classification-for-visual-impairment","title":"ICD-11 Classification for Visual Impairment (9D90)"}],"summary":"Visual impairment (ICD-11 9D90) is reduced, non-correctable visual function graded by best-corrected acuity and field in the better eye. In early childhood, behavioural testing leads the grade; cortical/cerebral causes can co-exist with a normal eye exam. Early detection drives motor, language and cognitive support.","answer_md":"*The first clinician to notice a child not fixing, following or reaching for light is often the one who changes that child's trajectory.*\n\n## In short\nVisual impairment (ICD-11 **9D90**) describes reduced visual function that is not fully correctable by refraction, ranging from mild impairment to blindness, graded clinically by distance and near visual acuity in the better eye with best correction. In early childhood it matters not only as an ophthalmic finding but as a driver of delay across motor, communication, social and cognitive domains — the visual channel that ordinarily scaffolds early learning is attenuated.\n\n## The science, briefly\nICD-11 categorises severity (mild, moderate, severe, blindness) on standardised acuity and visual-field criteria. In infants and toddlers, acuity testing is necessarily behavioural — fixation and following, preferential-looking, optokinetic responses — so the **functional** picture often leads the formal grade. Watch for absent fix-and-follow by 3 months, no visual reaching by 5–6 months, persistent nystagmus, roving eye movements, photophobia, leukocoria, or a regressing visual interest. Crucially, cortical/cerebral visual impairment is a leading paediatric cause and may co-exist with normal ocular structure, so a normal eye exam does not exclude it. Early identification triggers vision-stimulation, mobility and developmental support that materially alters outcomes.\n\n## The Pinnacle way\nAt Pinnacle Blooms Network, any diagnosis and a clinical [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) are formed only at a centre, under qualified clinician care — never from an app or a form. Suspected [visual impairment](/visual-impairment) warrants prompt ophthalmology and, in parallel, functional developmental and [occupational-therapy](https://www.pinnacleblooms.org/best-occupational-therapy-center-india-proven-improvement-rate) support.\n\n## Trusted sources\nWHO ICD-11 (entity 9D90); WHO and AAP guidance on paediatric vision screening and early detection.\n\n**Next step —** Refer a child with suspected reduced visual function for combined ophthalmic and developmental assessment at your nearest [Pinnacle centre](/visual-impairment).\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-visual-impairment-and-what-are-its-icd-11-features-in-early-childhood","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-visual-impairment-and-what-are-its-icd-11-features-in-early-childhood","lang":"en","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"Visual Impairment (ICD-11 9D90): Early Features","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"On clinical exam, test functional vision in the child's natural state — alert, upright, with high-contrast targets — before relying on formal acuity, which is hard to obtain in infants.","published_at":"2026-06-10T10:42:00.172548+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"what-is-visual-impairment","title":"What is Visual Impairment?","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-visual-impairment-and-what-does-it-look-like-in-early-childhood","title":"What is Visual Impairment, and what does it look like in early childhood?","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-icd-11-classification-for-visual-impairment","title":"ICD-11 Classification for Visual Impairment (9D90)","reason":"Linked from this answer"},{"lang":"en","slug":"what-does-current-research-show-about-early-intervention-outcomes-for-visual-impairment-in-children-under-7","title":"Early Intervention Outcomes for Visual Impairment in Children Under 7","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-snomed-ct-concept-for-visual-impairment","title":"SNOMED CT concept for Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"how-does-visual-impairment-affect-a-child-s-daily-life","title":"How Visual Impairment Affects a Child's Daily Life","reason":"Same topic"},{"lang":"en","slug":"is-visual-impairment-considered-a-disability","title":"Is Visual Impairment Considered a Disability?","reason":"Same topic"},{"lang":"en","slug":"is-visual-impairment-genetic-or-hereditary","title":"Is Visual Impairment Genetic or Hereditary?","reason":"Same topic"},{"lang":"en","slug":"what-are-common-myths-about-visual-impairment","title":"What are common myths about Visual Impairment?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-types-or-levels-of-visual-impairment","title":"What are the types or levels of Visual Impairment?","reason":"Same topic"},{"lang":"en","slug":"what-causes-visual-impairment-in-children","title":"What causes visual impairment in children?","reason":"Same topic"},{"lang":"en","slug":"what-other-conditions-often-occur-alongside-visual-impairment","title":"Conditions That Often Occur Alongside Visual Impairment","reason":"Same topic"}],"label":"Understand the subject","total":13},{"key":"signs","items":[{"lang":"en","slug":"what-clinical-red-flags-for-visual-impairment-warrant-referral-in-a-young-child","title":"Visual Impairment Red Flags in Young Children","reason":"Same topic"},{"lang":"en","slug":"what-early-indicators-of-visual-impairment-should-a-paediatrician-watch-for","title":"What early indicators of Visual Impairment should a paediatrician watch for?","reason":"Same topic"},{"lang":"en","slug":"when-should-a-doctor-refer-a-child-with-suspected-visual-impairment-for-developmental-therapy","title":"When to Refer a Child with Suspected Visual Impairment for Developmental Therapy","reason":"Same topic"},{"lang":"en","slug":"can-visual-impairment-be-cured","title":"Can Visual Impairment Be Cured?","reason":"Same topic"},{"lang":"en","slug":"can-visual-impairment-be-prevented","title":"Can Visual Impairment Be Prevented?","reason":"Same topic"},{"lang":"en","slug":"do-boys-show-visual-impairment-differently","title":"Do boys show visual impairment differently?","reason":"Same topic"},{"lang":"en","slug":"do-girls-show-visual-impairment-differently","title":"Do girls show visual impairment differently?","reason":"Same topic"},{"lang":"en","slug":"how-can-a-frontline-health-worker-spot-a-child-with-possible-visual-impairment-early","title":"How a Frontline Health Worker Can Spot Possible Visual Impairment Early","reason":"Same topic"},{"lang":"en","slug":"should-i-be-worried-my-child-might-have-visual-impairment","title":"Should I be worried my child might have Visual Impairment?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-visual-impairment","title":"What are the early signs of Visual Impairment?","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-visual-impairment-in-a-1-year-old-boy","title":"Early Signs of Visual Impairment in a 1-Year-Old Boy","reason":"Same topic"},{"lang":"en","slug":"what-are-the-early-signs-of-visual-impairment-in-a-1-year-old-girl","title":"Early Signs of Visual Impairment 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-visual-impairment-in-early-childhood","title":"Contributing Factors for Visual Impairment in Early Childhood","reason":"Same topic"},{"lang":"en","slug":"are-boys-more-likely-to-have-visual-impairment","title":"Are boys more likely to have visual impairment?","reason":"Same topic"},{"lang":"en","slug":"are-girls-more-likely-to-have-visual-impairment","title":"Are girls more likely to have visual impairment?","reason":"Same topic"},{"lang":"en","slug":"how-does-early-intervention-for-visual-impairment-advance-un-child-rights-uncrpd-and-the-sdgs","title":"Early Intervention for Visual Impairment & UN Child Rights","reason":"Same topic"},{"lang":"en","slug":"what-causes-visual-impairment-in-young-children","title":"What causes visual impairment in young children?","reason":"Same topic"},{"lang":"en","slug":"what-is-the-cost-effectiveness-of-early-therapy-for-visual-impairment-in-young-children","title":"Cost-Effectiveness of Early Therapy for Visual Impairment in Young Children","reason":"Same topic"},{"lang":"en","slug":"what-is-the-prevalence-and-public-health-burden-of-visual-impairment-among-young-children-in-india","title":"Visual Impairment in young children: India's prevalence and public-health burden","reason":"Same topic"}],"label":"Explore causes & influences","total":7},{"key":"assess","items":[{"lang":"en","slug":"how-is-visual-impairment-assessed-in-a-young-child","title":"How Visual Impairment Is Assessed in a Young Child","reason":"Linked from this answer"},{"lang":"en","slug":"how-is-visual-impairment-assessed-in-children-under-7","title":"How Visual Impairment Is Assessed in Children Under 7","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-recommended-screening-and-diagnostic-pathway-for-visual-impairment-in-children-under-7","title":"Screening and diagnostic pathway for Visual Impairment under 7","reason":"Same topic"},{"lang":"en","slug":"how-does-abilityscore-track-progress-in-a-child-with-visual-impairment","title":"How AbilityScore tracks progress in Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-0-100-mean-for-a-child-with-visual-impairment","title":"AbilityScore 0–100 for a child with visual impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-100-200-mean-for-a-child-with-visual-impairment","title":"AbilityScore 100–200 in Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-200-300-mean-for-a-child-with-visual-impairment","title":"AbilityScore 200–300 and visual impairment, explained for parents","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-300-400-mean-for-a-child-with-visual-impairment","title":"AbilityScore 300–400 in Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-400-500-mean-for-a-child-with-visual-impairment","title":"AbilityScore® 400–500 with Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-500-600-mean-for-a-child-with-visual-impairment","title":"What does an AbilityScore of 500–600 mean for a child with Visual Impairment?","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-600-700-mean-for-a-child-with-visual-impairment","title":"What an AbilityScore of 600–700 Means for Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"what-does-an-abilityscore-of-700-800-mean-for-a-child-with-visual-impairment","title":"What does an AbilityScore of 700–800 mean for a child with Visual Impairment?","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-visual-impairment-day-to-day","title":"How Caregivers Can Support a Child with Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-visual-impairment-attend-a-mainstream-school","title":"Can a child with visual impairment attend a mainstream school?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-visual-impairment-attend-a-regular-school","title":"Can a child with visual impairment attend a regular school?","reason":"Same topic"},{"lang":"en","slug":"can-a-child-with-visual-impairment-grow-up-to-live-independently","title":"Can a child with visual impairment live independently?","reason":"Same topic"},{"lang":"en","slug":"how-can-a-classroom-teacher-help-a-child-with-visual-impairment-take-part-and-learn","title":"How a Teacher Can Help a Child with Visual Impairment Learn","reason":"Same topic"},{"lang":"en","slug":"how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-visual-impairment","title":"Identifying and supporting under-7s with visual impairment in a district programme","reason":"Same topic"},{"lang":"en","slug":"how-can-a-teacher-include-and-support-a-young-child-with-visual-impairment-in-a-mainstream-classroom","title":"How a teacher can include a child with Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"how-can-we-support-sensory-development-in-a-child-with-visual-impairment","title":"How to Support Sensory Development in a Child with Visual Impairment","reason":"Same topic"},{"lang":"en","slug":"how-does-therapy-help-a-child-with-visual-impairment-make-progress","title":"How therapy helps a child with visual impairment progress","reason":"Same topic"},{"lang":"en","slug":"how-is-visual-impairment-diagnosed-in-a-child","title":"How Visual Impairment Is Diagnosed in a Child","reason":"Same topic"},{"lang":"en","slug":"how-is-visual-impairment-supported-through-therapy","title":"How is Visual Impairment supported through therapy?","reason":"Same topic"},{"lang":"en","slug":"my-child-with-visual-impairment-has-an-abilityscore-of-0-100-what-should-we-do-next","title":"AbilityScore & Visual Impairment: 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-visual-impairment-at-home","title":"How can I support my child with Visual Impairment at home?","reason":"Same topic"}],"label":"At home & in everyday life","total":1}],"what_to_watch":"Absent fix-and-follow by 3 months, no visual reaching by 5–6 months, persistent nystagmus or roving eye movements, photophobia, leukocoria, or regressing visual interest — and remember a normal eye exam does not exclude cerebral visual impairment.","authority_links":[{"url":"https://icd.who.int/","code":"9D90","label":"WHO ICD-11: Visual impairment"},{"url":"https://www.aap.org/","label":"AAP: paediatric vision screening guidance"},{"url":"https://www.who.int/","label":"WHO: vision and child health"}],"last_reviewed_at":"2026-06-10T10:42:00.172548+00:00","meta_description":"Visual impairment (ICD-11 9D90) defined for clinicians: severity grading, early-childhood functional signs, cortical visual impairment and referral pathway","related_materials":[],"related_techniques":[]}