Paranoid Personality Disorder No Longer Exists as a Separate Diagnosis in ICD-11
In ICD-11, paranoid personality disorder has been eliminated as a distinct diagnostic category and replaced with a unified personality disorder diagnosis that uses severity specifiers (mild, moderate, severe) and optional trait domain specifiers. 1
The ICD-11 Personality Disorder Framework
The fundamental shift in ICD-11 represents a move away from categorical personality disorder subtypes because the discrete categories in ICD-10 lacked empirical support and resulted in excessive diagnostic overlap. 1
Available Specifiers for All Personality Disorders (Including Former PPD)
Severity Specifiers (Required):
- Mild - problems in personality functioning affecting some areas
- Moderate - problems affecting multiple areas
- Severe - pervasive problems across most areas of functioning
These severity ratings are based on disturbances in:
- Self-functioning (e.g., identity, self-direction)
- Interpersonal functioning (e.g., capacity for intimacy, managing conflict in relationships) 1
Trait Domain Specifiers (Optional):
When diagnosing personality disorder under ICD-11, you may optionally specify one or multiple maladaptive personality trait domains:
- Negative affectivity
- Detachment (most relevant for former paranoid PD features)
- Dissociality (relevant for hostility/aggression seen in paranoid presentations)
- Disinhibition
- Anankastia
- Borderline pattern 1
Clinical Application for Paranoid Presentations
For patients who would have previously received a paranoid personality disorder diagnosis, you would now:
- Diagnose: Personality Disorder (single unified diagnosis)
- Specify severity: Mild, moderate, or severe based on functional impairment
- Add trait specifiers: Most commonly detachment (capturing social avoidance, suspiciousness) and/or dissociality (capturing hostility, antagonism) 2
Important Caveats
The dimensional approach reflects clinical reality better - research shows paranoid presentations are actually transdiagnostic features that appear across multiple personality pathologies, particularly borderline personality disorder, rather than representing a discrete entity. 3, 4 The two-dimensional structure of former PPD (suspiciousness and hostility) 5, 6 is now captured through the trait domain system rather than as a separate diagnosis.
DSM-5 still retains paranoid personality disorder as a categorical diagnosis, so your documentation approach depends on which classification system your institution uses. The ICD-11 system prioritizes clinical utility and simplicity over the more complex dimensional model that was considered but rejected for DSM-5. 1