Separation Anxiety Disorder
What is Separation Anxiety Disorder?
Separation Anxiety Disorder (ICD-11 6B05) is excessive, developmentally inappropriate fear of being apart from a primary caregiver. Some clinginess is normal in early childhood; it becomes a clinical concern only when distress is intense, persistent over weeks, and disrupts sleep, school and family life. Diagnosis follows a clinician-administered review, not a checklist.
When a goodbye feels less like a wobble and more like genuine fear, that is the pattern separation anxiety disorder describes.
In short
Separation Anxiety Disorder (ICD-11 6B05) is excessive, developmentally inappropriate fear or anxiety about being apart from the people a child is most attached to — usually a parent or caregiver. Some clinginess is healthy and expected in early childhood; this becomes a clinical concern only when the distress is intense, persistent (typically lasting weeks or longer), and clearly interferes with everyday life — sleep, school, play and family routines. It is recognised within the anxiety and fear-related disorders.What this looks like
In young children, you might notice recurring, outsized distress when separation is anticipated or happens; persistent worry that something bad will happen to a parent or that they will be lost; reluctance or refusal to go to school, nursery or sleep alone; "shadowing" a caregiver around the house; nightmares about separation; and physical complaints — tummy aches, headaches, nausea — that flare around partings. The key word is excessive: the reaction is far beyond what other children of the same age show, and it does not settle with usual reassurance.When it is worth a closer look
Normal separation worry peaks in the toddler years and gently eases as a child gains confidence. Consider a developmental review when the fear is severe, lasts steadily over weeks, keeps a child from school or sleep, or causes the whole family to reorganise around avoiding separation. A clinician will look at the child's age, temperament, recent changes (a new sibling, a move, illness) and overall emotional development before forming any view — many children simply need supportive, graded reassurance rather than a label.The Pinnacle way
This is general information, not a diagnosis — a clinical AbilityScore®, a clinician-administered structured assessment, and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care. Our approach pairs gentle, play-based behavioural therapy with parent coaching, individualised on each child's separation anxiety disorder profile so confidence is built one small, successful goodbye at a time.Trusted sources
WHO ICD-11 (anxiety and fear-related disorders); American Academy of Pediatrics guidance on childhood anxiety and separation; WHO healthy-child development framework.Next step — If goodbyes are consistently distressing and disrupting school or sleep, book a calm developmental review to understand what your child needs.
What to watch
Outsized distress before or during partings, persistent worry that something bad will happen to a parent, refusal to attend school or sleep alone, nightmares about separation, and physical complaints like tummy aches around goodbyes — when these are severe, last weeks, and disrupt daily life.
Try this at home
Practise tiny, predictable goodbyes — a short, warm farewell ritual and a clear promise of when you'll return, kept reliably. Build separation in small, successful steps rather than slipping away, which can heighten worry.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
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.
Frequently asked
Isn't some separation anxiety normal in young children?
Yes — mild clinginess and upset at goodbyes are healthy and expected, peaking in the toddler years and easing with age. It becomes a clinical concern only when the fear is excessive, lasts steadily over weeks, and clearly disrupts sleep, school or family routines.
At what age does Separation Anxiety Disorder usually appear?
Separation worry is normal across early childhood; when it is excessive and persistent enough to be considered a disorder, it most often shows in the pre-school and early school years. A clinician weighs the child's age, temperament and circumstances before forming any view.
How is it assessed at Pinnacle Blooms Network?
Through a clinician-administered structured assessment and an AbilityScore® formed only at a Pinnacle Blooms Network centre under qualified clinician care — never from an app or checklist. The clinician considers the child's history, recent changes and overall emotional development.
Can it be helped?
Yes. Gentle, graded approaches — predictable goodbye rituals, building separation in small successful steps, parent coaching and play-based behavioural therapy — help most children grow in confidence.