6B44ICD-11 MMS 2026-01
Reactive attachment disorder
Description
Reactive attachment disorder is characterised by grossly abnormal attachment behaviours in early childhood, occurring in the context of a history of grossly inadequate child care (e.g., severe neglect, maltreatment, institutional deprivation). Even when an adequate primary caregiver is newly available, the child does not turn to the primary caregiver for comfort, support and nurture, rarely displays security-seeking behaviours towards any adult, and does not respond when comfort is offered. Reactive attachment disorder can only be diagnosed in children, and features of the disorder develop within the first 5 years of life. However, the disorder cannot be diagnosed before the age of 1 year (or a developmental age of less than 9 months), when the capacity for selective attachments may not be fully developed, or in the context of Autism spectrum disorder.
Index terms
- Reactive attachment disorder
- childhood reactive attachment disorder
- reactive attachment disorder of early childhood
Excludes
Exclusions from above levels
Sibling codes
6B40– Post traumatic stress disorder6B41– Complex post traumatic stress disorder6B42– Prolonged grief disorder6B43– Adjustment disorder6B45– Disinhibited social engagement disorder6B4Y– Other specified disorders specifically associated with stress6B4Z– Disorders specifically associated with stress, unspecified
Foundation entity
Reactive attachment disorder – http://id.who.int/icd/entity/1867081699
Part of: 06: Mental, behavioural or neurodevelopmental disorders