6D11.5ICD-11 MMS 2026-01
Borderline pattern
Description
The Borderline pattern specifier may be applied to individuals whose pattern of personality disturbance is characterised by a pervasive pattern of instability of interpersonal relationships, self-image, and affects, and marked impulsivity, as indicated by many of the following: Frantic efforts to avoid real or imagined abandonment; A pattern of unstable and intense interpersonal relationships; Identity disturbance, manifested in markedly and persistently unstable self-image or sense of self; A tendency to act rashly in states of high negative affect, leading to potentially self-damaging behaviours; Recurrent episodes of self-harm; Emotional instability due to marked reactivity of mood; Chronic feelings of emptiness; Inappropriate intense anger or difficulty controlling anger; Transient dissociative symptoms or psychotic-like features in situations of high affective arousal.
Coding note
This category should ONLY be used in combination with a Personality disorder category (Mild, Moderate, or Severe) or Personality difficulty.
Coding note from above levels
The following categories should ONLY be used in combination with a Personality disorder category (Mild, Moderate, or Severe) or Personality difficulty.
Index terms
- Borderline pattern
Exclusions from above levels
Sibling codes
6D11.0– Negative affectivity in personality disorder or personality difficulty6D11.1– Detachment in personality disorder or personality difficulty6D11.2– Dissociality in personality disorder or personality difficulty6D11.3– Disinhibition in personality disorder or personality difficulty6D11.4– Anankastia in personality disorder or personality difficulty
Foundation entity
Borderline pattern – http://id.who.int/icd/entity/2006821354
Allowed postcoordination axes
Part of: 6D11: Prominent personality traits or patterns › 06: Mental, behavioural or neurodevelopmental disorders