# ICD-11 Classification for Attachment Difficulties (6B44)

Canonical: https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-attachment-difficulties
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

In ICD-11-MMS, attachment difficulties are classified as 6B44 Reactive attachment disorder, within disorders specifically associated with stress. It describes grossly abnormal attachment behaviour in early childhood arising from pathogenic care, distinct from 6B45 Disinhibited social engagement disorder and from autism spectrum disorder.

*A child who struggles to seek and accept comfort from a primary caregiver is signalling something the ICD-11 names precisely — and naming it correctly is the first step to helping.*

## In short
In **ICD-11-MMS**, attachment difficulties are classified under **6B44 Reactive attachment disorder**, within the grouping of disorders specifically associated with stress. It describes grossly abnormal attachment behaviours in early childhood — a consistent failure to seek or respond to comfort from caregivers — arising in the context of pathogenic care such as social neglect, deprivation or repeated changes in primary caregiver. Its conceptual sibling, **6B45 Disinhibited social engagement disorder**, sits alongside it for the contrasting presentation of indiscriminate, overfamiliar social approach.

## The classification, briefly
Reactive attachment disorder (6B44) is defined by markedly disturbed and developmentally inappropriate attachment behaviours: the child rarely turns to an attachment figure for comfort, support, nurturance or protection, and shows minimal social and emotional responsiveness to others, with limited positive affect and episodes of unexplained irritability, sadness or fearfulness during otherwise non-threatening interactions with caregivers. The diagnosis requires evidence of pathogenic care and that the child has a developmental age of at least nine months — below which selective attachment is not yet reliably established. It is distinguished from autism spectrum disorder, in which the social-communication differences are pervasive rather than care-context-dependent.

## When to refer
Refer when disturbed attachment behaviour persists despite an adequate caregiving environment, when there is a documented history of neglect, institutional care or disrupted placements, or when the differential includes autism spectrum disorder or intellectual developmental disorder. Early multidisciplinary assessment — developmental, relational and psychosocial — supports accurate differentiation and timely caregiver-focused intervention.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from an online form. Our teams assess the child within the caregiving relationship, building a relational and developmental profile that informs targeted support. Explore [how the AbilityScore works](/ask/what-is-the-abilityscore-and-how-is-it-calculated), our [behavioural therapy services](/behavioural-therapy), and [begin with a developmental check](/).

## Trusted sources
WHO ICD-11 for Mortality and Morbidity Statistics, disorders specifically associated with stress; American Academy of Pediatrics guidance on early childhood mental health and attachment.

**Next step —** If a child's attachment patterns concern you, [arrange a Pinnacle developmental assessment](/).

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

## Sources
- WHO ICD-11 — Reactive attachment disorder: https://icd.who.int
- WHO ICD-11 — Disinhibited social engagement disorder: https://icd.who.int
- American Academy of Pediatrics — early childhood mental health: 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
- Screen: https://pinnacleblooms.org/ask/lens/route/screen
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- Attachment Difficulties: ICD-11 Features in Early Childhood: https://pinnacleblooms.org/ask/what-is-attachment-difficulties-and-what-are-its-icd-11-features-in-early-childhood
- What is Attachment Difficulties?: https://pinnacleblooms.org/ask/what-is-attachment-difficulties
- SNOMED CT concept for Attachment Difficulties: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-attachment-difficulties
- What is Developmental Trauma, and what are its ICD-11 features in early childhood?: https://pinnacleblooms.org/ask/what-is-developmental-trauma-and-what-are-its-icd-11-features-in-early-childhood
- How does Attachment Difficulties affect a child's daily life?: https://pinnacleblooms.org/ask/how-does-attachment-difficulties-affect-a-child-s-daily-life
- Is Attachment Difficulties considered a disability?: https://pinnacleblooms.org/ask/is-attachment-difficulties-considered-a-disability
- Is Attachment Difficulties genetic or hereditary?: https://pinnacleblooms.org/ask/is-attachment-difficulties-genetic-or-hereditary
- Common Myths About Attachment Difficulties: https://pinnacleblooms.org/ask/what-are-common-myths-about-attachment-difficulties
- What are the types or levels of Attachment Difficulties?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-attachment-difficulties
- What Causes Attachment Difficulties in Children?: https://pinnacleblooms.org/ask/what-causes-attachment-difficulties-in-children
- Early intervention outcomes for Attachment Difficulties under 7: https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-attachment-difficulties-in-children-under-7
- What Are Attachment Difficulties in Early Childhood?: https://pinnacleblooms.org/ask/what-is-attachment-difficulties-and-what-does-it-look-like-in-early-childhood

### Recognise signs & concerns
- Attachment Difficulties red flags for referral in young children: https://pinnacleblooms.org/ask/what-clinical-red-flags-for-attachment-difficulties-warrant-referral-in-a-young-child
- What early indicators of Attachment Difficulties should a paediatrician watch for?: https://pinnacleblooms.org/ask/what-early-indicators-of-attachment-difficulties-should-a-paediatrician-watch-for
- When to refer suspected attachment difficulties for developmental therapy: https://pinnacleblooms.org/ask/when-should-a-doctor-refer-a-child-with-suspected-attachment-difficulties-for-developmental-therapy
- Can Attachment Difficulties be cured?: https://pinnacleblooms.org/ask/can-attachment-difficulties-be-cured
- Can Attachment Difficulties Be Prevented?: https://pinnacleblooms.org/ask/can-attachment-difficulties-be-prevented
- Do boys show attachment difficulties differently?: https://pinnacleblooms.org/ask/do-boys-show-attachment-difficulties-differently
- Do girls show Attachment Difficulties differently?: https://pinnacleblooms.org/ask/do-girls-show-attachment-difficulties-differently
- How a frontline health worker can spot possible attachment difficulties early: https://pinnacleblooms.org/ask/how-can-a-frontline-health-worker-spot-a-child-with-possible-attachment-difficulties-early
- Should I Be Worried About Attachment Difficulties?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-attachment-difficulties
- What are the early signs of Attachment Difficulties?: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-attachment-difficulties
- Early Signs of Attachment Difficulties in a 1-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-attachment-difficulties-in-a-1-year-old-boy
- Early Signs of Attachment Difficulties in a 1-Year-Old Girl: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-attachment-difficulties-in-a-1-year-old-girl

### Explore causes & influences
- Contributing Factors for Attachment Difficulties: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-attachment-difficulties-in-early-childhood
- Are boys more likely to have attachment difficulties?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-attachment-difficulties
- Are girls more likely to have attachment difficulties?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-attachment-difficulties
- Early Intervention for Attachment Difficulties & UN Child Rights: https://pinnacleblooms.org/ask/how-does-early-intervention-for-attachment-difficulties-advance-un-child-rights-uncrpd-and-the-sdgs
- What causes Attachment Difficulties in young children?: https://pinnacleblooms.org/ask/what-causes-attachment-difficulties-in-young-children
- Cost-effectiveness of early therapy for attachment difficulties: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-attachment-difficulties-in-young-children
- Attachment Difficulties in India: prevalence and public-health burden: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-attachment-difficulties-among-young-children-in-india

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

### Explore therapy & support
- Supporting a Child with Attachment Difficulties Day to Day: https://pinnacleblooms.org/ask/as-a-grandparent-or-caregiver-how-can-i-support-a-child-with-attachment-difficulties-day-to-day
- Can a child with Attachment Difficulties attend a mainstream school?: https://pinnacleblooms.org/ask/can-a-child-with-attachment-difficulties-attend-a-mainstream-school
- Can a Child with Attachment Difficulties Attend a Regular School?: https://pinnacleblooms.org/ask/can-a-child-with-attachment-difficulties-attend-a-regular-school
- Can a Child with Attachment Difficulties Live Independently?: https://pinnacleblooms.org/ask/can-a-child-with-attachment-difficulties-grow-up-to-live-independently
- How a Teacher Can Help a Child with Attachment Difficulties Learn: https://pinnacleblooms.org/ask/how-can-a-classroom-teacher-help-a-child-with-attachment-difficulties-take-part-and-learn
- Identifying and Supporting Under-7s with Attachment Difficulties: https://pinnacleblooms.org/ask/how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-attachment-difficulties
- Supporting a Child with Attachment Difficulties in a Mainstream Classroom: https://pinnacleblooms.org/ask/how-can-a-teacher-include-and-support-a-young-child-with-attachment-difficulties-in-a-mainstream-classroom
- How to Support Emotional Development with Attachment Difficulties: https://pinnacleblooms.org/ask/how-can-we-support-emotional-development-in-a-child-with-attachment-difficulties
- How therapy helps a child with attachment difficulties make progress: https://pinnacleblooms.org/ask/how-does-therapy-help-a-child-with-attachment-difficulties-make-progress
- How is Attachment Difficulties diagnosed in a child?: https://pinnacleblooms.org/ask/how-is-attachment-difficulties-diagnosed-in-a-child
- How Attachment Difficulties Are Supported Through Therapy: https://pinnacleblooms.org/ask/how-is-attachment-difficulties-supported-through-therapy
- AbilityScore & Attachment Difficulties: Your Next Step: https://pinnacleblooms.org/ask/my-child-with-attachment-difficulties-has-an-abilityscore-of-0-100-what-should-we-do-next

### At home & in everyday life
- How can I support my child with Attachment Difficulties at home?: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-attachment-difficulties-at-home