6D11.5

ICD-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

  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Sibling codes

  • 6D11.0 – Negative affectivity in personality disorder or personality difficulty
  • 6D11.1 – Detachment in personality disorder or personality difficulty
  • 6D11.2 – Dissociality in personality disorder or personality difficulty
  • 6D11.3 – Disinhibition in personality disorder or personality difficulty
  • 6D11.4 – 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