When to refer a child with possible Intellectual Disability

You don't need a diagnosis to make a referral — you need a pattern, and the wisdom to act on it. Here is when to refer.

In short

Refer a child to a paediatrician or developmental specialist whenever you see a persistent delay across two or more areas — sitting, walking, speaking, understanding, self-care or playing with others — that is not catching up over time. As a frontline worker (ASHA, ANM or PHC medical officer), you do not confirm Intellectual Disability; you spot the pattern early and route the family for assessment. Earlier referral means earlier support and better outcomes.

When to refer

Use milestone tracking at every contact and refer if you see:

• Motor — not sitting by ~9 months, not walking by ~18 months
• Language — no single words by 16 months, no two-word phrases by 2 years
• Understanding — unable to follow simple instructions for age, slow to learn everyday tasks
• Self-care & social — much slower than peers at feeding, dressing or playing, beyond the toddler years
• Any age — loss of skills the child once had (refer urgently), or a parent who is consistently worried

Also refer promptly when there are known risk factors — birth asphyxia, very low birth weight, neonatal seizures, recurrent jaundice, or a family history.

The science, briefly

WHO ICD-11 classifies disorders of intellectual development under 6A00, defined by significant limitations in both intellectual functioning and adaptive behaviour, arising during the developmental period. Diagnosis needs structured clinical assessment — never a single visit. Your role is the crucial first link: surveillance at every contact, simple milestone checks, and timely onward routing.

The Pinnacle way

Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from a form or a single screening. We work alongside frontline workers across 70+ centres to turn a referral into a clear plan. Learn how the clinician-administered AbilityScore® maps each child's own baseline.

Trusted sources

WHO ICD-11 (6A00, disorders of intellectual development); CDC — Learn the Signs. Act Early. milestone checklists; Indian Academy of Pediatrics; American Academy of Pediatrics (HealthyChildren.org).

Next step — When in doubt, refer. Book a developmental assessment with a Pinnacle clinician for any child you are concerned about.

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