# Separation Anxiety Disorder (ICD-11 6B05): a clinician explainer

Canonical: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder-and-what-are-its-icd-11-features-in-early-childhood
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

Separation Anxiety Disorder (ICD-11 6B05) is marked, developmentally excessive fear or anxiety about separation from attachment figures, persisting over time and causing functional impairment. In early childhood it presents as excessive worry about harm to caregivers, refusal to separate, separation nightmares and somatic complaints — exceeding normative developmental responses.

*Clinginess is normal in early childhood — but when the distress is disproportionate, persistent and functionally impairing, it crosses into a recognised disorder.*

## In short
Separation Anxiety Disorder (**ICD-11 6B05**) is characterised by marked, developmentally excessive fear or anxiety concerning separation from specific attachment figures. In early childhood the worry centres on actual or anticipated separation, persists for an extended period (typically several weeks or more), and is clearly out of proportion to the child's developmental stage. The hallmark is functional impairment — disrupted sleep, schooling, social participation or family routine.

## The science, briefly
Under ICD-11, the diagnosis requires that anxiety be focused on separation from those to whom the child is attached, manifesting as persistent excessive worry about harm befalling the attachment figure, reluctance or refusal to be apart, recurrent nightmares with separation themes, and somatic complaints (headache, abdominal pain, nausea) on separation or its anticipation. Symptoms must exceed normative developmental separation responses and cause distress or impairment across settings. Key differentials in this age band include normative attachment behaviour, social anxiety, generalised anxiety, and selective mutism; onset is commonly recognised before adolescence and may follow a stressor. Clinical judgement, multi-informant history and observation across contexts anchor the formulation.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online tool. Our model integrates emotional-regulation profiling within the broader developmental picture. Explore [Separation Anxiety Disorder](/separation-anxiety-disorder), our [child psychology and behavioural therapy](/behavioural-therapy) pathway, and [how the AbilityScore® is established](/ask/what-is-the-abilityscore-and-how-is-it-calculated).

## Trusted sources
WHO ICD-11 Mental, Behavioural and Neurodevelopmental Disorders (6B05); American Academy of Pediatrics guidance on childhood anxiety.

**Next step —** Refer a family or partner with Pinnacle to co-manage early-childhood anxiety presentations.

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

## Sources
- WHO ICD-11 — Anxiety or Fear-Related Disorders: https://icd.who.int/
- American Academy of Pediatrics — childhood anxiety guidance: https://www.aap.org/

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Doctor: https://pinnacleblooms.org/ask/lens/stakeholder/doctor
- Emotional: https://pinnacleblooms.org/ask/lens/domain/emotional
- Definition: https://pinnacleblooms.org/ask/lens/intent/definition
- Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen
- Special Education: https://pinnacleblooms.org/ask/lens/route/special-education
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- What is Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder
- What is Separation Anxiety Disorder, and what does it look like in early childhood?: https://pinnacleblooms.org/ask/what-is-separation-anxiety-disorder-and-what-does-it-look-like-in-early-childhood
- ICD-11 Classification of Separation Anxiety Disorder (6B05): https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-separation-anxiety-disorder
- What is the SNOMED CT concept for Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-separation-anxiety-disorder
- How Separation Anxiety Disorder affects a child's daily life: https://pinnacleblooms.org/ask/how-does-separation-anxiety-disorder-affect-a-child-s-daily-life
- Is Separation Anxiety Disorder Considered a Disability?: https://pinnacleblooms.org/ask/is-separation-anxiety-disorder-considered-a-disability
- Is Separation Anxiety Disorder genetic or hereditary?: https://pinnacleblooms.org/ask/is-separation-anxiety-disorder-genetic-or-hereditary
- What are common myths about Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-common-myths-about-separation-anxiety-disorder
- What are the types or levels of Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-separation-anxiety-disorder
- What causes Separation Anxiety Disorder in children?: https://pinnacleblooms.org/ask/what-causes-separation-anxiety-disorder-in-children
- Early Intervention Outcomes for Separation Anxiety Disorder (Under 7): https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-separation-anxiety-disorder-in-children-under-7
- Conditions That Often Occur Alongside Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-separation-anxiety-disorder

### Recognise signs & concerns
- When should a doctor investigate separation anxiety in a young child?: https://pinnacleblooms.org/ask/when-should-a-doctor-investigate-separation-anxiety-in-a-young-child
- Separation Anxiety Disorder red flags warranting referral: https://pinnacleblooms.org/ask/what-clinical-red-flags-for-separation-anxiety-disorder-warrant-referral-in-a-young-child
- Early indicators of Separation Anxiety Disorder for paediatricians: https://pinnacleblooms.org/ask/what-early-indicators-of-separation-anxiety-disorder-should-a-paediatrician-watch-for
- When to refer a child with suspected Separation Anxiety Disorder: https://pinnacleblooms.org/ask/when-should-a-doctor-refer-a-child-with-suspected-separation-anxiety-disorder-for-developmental-therapy
- Can Separation Anxiety Disorder be cured?: https://pinnacleblooms.org/ask/can-separation-anxiety-disorder-be-cured
- Can Separation Anxiety Disorder be prevented?: https://pinnacleblooms.org/ask/can-separation-anxiety-disorder-be-prevented
- Do boys show Separation Anxiety Disorder differently?: https://pinnacleblooms.org/ask/do-boys-show-separation-anxiety-disorder-differently
- Do girls show Separation Anxiety Disorder differently?: https://pinnacleblooms.org/ask/do-girls-show-separation-anxiety-disorder-differently
- Spotting Separation Anxiety Disorder Early: https://pinnacleblooms.org/ask/how-can-a-frontline-health-worker-spot-a-child-with-possible-separation-anxiety-disorder-early
- Should I be worried my child might have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-separation-anxiety-disorder
- What are the early signs of Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-separation-anxiety-disorder
- Early Signs of Separation Anxiety in a 1-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-separation-anxiety-disorder-in-a-1-year-old-boy

### Explore causes & influences
- Contributing factors for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-separation-anxiety-disorder-in-early-childhood
- Are boys more likely to have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-separation-anxiety-disorder
- Are girls more likely to have Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-separation-anxiety-disorder
- Early Intervention for Separation Anxiety: Advancing UN Child Rights & the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-separation-anxiety-disorder-advance-un-child-rights-uncrpd-and-the-sdgs
- What causes Separation Anxiety Disorder in young children?: https://pinnacleblooms.org/ask/what-causes-separation-anxiety-disorder-in-young-children
- Cost-effectiveness of early therapy for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-separation-anxiety-disorder-in-young-children
- Separation Anxiety Disorder in India: Prevalence and Public-Health Burden: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-separation-anxiety-disorder-among-young-children-in-india

### Understand assessment
- Standardised tools for Separation Anxiety Disorder assessment: https://pinnacleblooms.org/ask/which-standardised-tools-are-used-to-assess-separation-anxiety-disorder-in-early-childhood
- Separation Anxiety Disorder: the under-7 screening and diagnostic pathway: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-separation-anxiety-disorder-in-children-under-7
- How AbilityScore Tracks Progress in Separation Anxiety Disorder: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-separation-anxiety-disorder
- How Separation Anxiety Disorder Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-assessed-in-a-young-child
- How Separation Anxiety Disorder Is Assessed in Children Under 7: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-assessed-in-children-under-7
- What an AbilityScore of 0–100 means for separation anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 100–200 Means for Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 200–300 Means for Separation Anxiety Disorder: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-separation-anxiety-disorder
- What does an AbilityScore of 300–400 mean for a child with Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 400-500 Means in Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-separation-anxiety-disorder
- What an AbilityScore of 500–600 Means for Separation Anxiety: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-separation-anxiety-disorder
- What does an AbilityScore of 600–700 mean for a child with Separation Anxiety Disorder?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-separation-anxiety-disorder

### Explore therapy & support
- How can I support a child with Separation Anxiety Disorder day to day?: https://pinnacleblooms.org/ask/as-a-grandparent-or-caregiver-how-can-i-support-a-child-with-separation-anxiety-disorder-day-to-day
- Separation Anxiety Disorder and Mainstream School: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-attend-a-mainstream-school
- Can a Child with Separation Anxiety Attend a Regular School?: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-attend-a-regular-school
- Can a Child With Separation Anxiety Live Independently?: https://pinnacleblooms.org/ask/can-a-child-with-separation-anxiety-disorder-grow-up-to-live-independently
- How a Teacher Can Help a Child with Separation Anxiety Learn: https://pinnacleblooms.org/ask/how-can-a-classroom-teacher-help-a-child-with-separation-anxiety-disorder-take-part-and-learn
- Identifying and supporting children under 7 with Separation Anxiety Disorder in a district programme: https://pinnacleblooms.org/ask/how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-separation-anxiety-disorder
- How a Teacher Can Support a Child with Separation Anxiety Disorder: https://pinnacleblooms.org/ask/how-can-a-teacher-include-and-support-a-young-child-with-separation-anxiety-disorder-in-a-mainstream-classroom
- Supporting Emotional Development in a Child with Separation Anxiety: https://pinnacleblooms.org/ask/how-can-we-support-emotional-development-in-a-child-with-separation-anxiety-disorder
- How therapy helps a child with Separation Anxiety Disorder make progress: https://pinnacleblooms.org/ask/how-does-therapy-help-a-child-with-separation-anxiety-disorder-make-progress
- How Separation Anxiety Disorder Is Diagnosed in a Child: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-diagnosed-in-a-child
- How Therapy Supports Separation Anxiety Disorder: https://pinnacleblooms.org/ask/how-is-separation-anxiety-disorder-supported-through-therapy
- Your Child's AbilityScore for Separation Anxiety — What's Next: https://pinnacleblooms.org/ask/my-child-with-separation-anxiety-disorder-has-an-abilityscore-of-0-100-what-should-we-do-next

### At home & in everyday life
- How can I support my child with Separation Anxiety Disorder at home?: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-separation-anxiety-disorder-at-home