Structured Interview Assessments for ICD-11 Mental Health Concerns
The Composite International Diagnostic Interview (CIDI) is the most comprehensive structured interview assessment tool aligned with ICD-11 mental health diagnostic criteria, offering both categorical and dimensional elements for accurate diagnosis across different cultures.
Primary Assessment Tools for ICD-11 Mental Health Disorders
The transition from ICD-10 to ICD-11 has introduced significant changes in the classification of mental, behavioral, and neurodevelopmental disorders, with a shift toward both categorical and dimensional approaches to diagnosis 1. Several structured interview assessments are available that align with ICD-11 criteria:
Composite International Diagnostic Interview (CIDI)
- Primary recommendation: The CIDI is a fully structured diagnostic interview developed by the World Health Organization that maps symptoms onto diagnostic criteria for both ICD and DSM systems 2, 3
- Key features:
- Excellent inter-rater reliability and good test-retest reliability 2
- Available in multiple languages and formats (paper-and-pencil and computer-administered) 2
- Modular structure covering 39 ICD diagnoses 3
- Can be administered by trained non-clinical staff 4
- Designed specifically for epidemiological and cross-cultural applications 4
CIDI-VENUS (Women-Specific Version)
- Specifically designed to address women's mental health needs with additional modules for:
- Premenstrual symptoms using the Premenstrual Symptoms Screening Tool (PSST)
- Perinatal mental health assessment with links to the Edinburgh Postnatal Depression Scale (EPDS)
- Menopausal transition assessment with the Menopause Visual Analogue Scales (M-VAS)
- Tracking mental disorders across reproductive stages 5
Disorder-Specific Assessment Tools Compatible with ICD-11
Depression Assessment Tools
Patient Health Questionnaire (PHQ-9):
Center for Epidemiological Studies-Depression Scale (CES-D):
- 20-item self-report scale (10-item short form available)
- Scores ≥16 suggest moderate to severe depressive symptoms
- Relatively unaffected by physical symptoms 1
Geriatric Depression Scale (GDS):
- 30-item version or 15-item short form for elderly patients
- GDS score ≥19 (or GDS-SF ≥5) suggests depression requiring follow-up 1
Anxiety Assessment Tools
Generalized Anxiety Disorder 7-item scale (GAD-7):
- Most validated tool for assessing anxiety severity
- Scoring: 0-4 (minimal), 5-9 (mild), 10-14 (moderate), 15-21 (severe) anxiety
- Cut-off score of ≥10 has good sensitivity and specificity 6
Hospital Anxiety and Depression Scale (HADS):
Penn State Worry Questionnaire (PSWQ):
- 16-item scale (8-item abbreviated form available)
- Specifically assesses worry severity, the primary symptom of GAD
- Can be scored continuously or dichotomously 1
Implementation Approach for Clinical Practice
Initial Screening:
- Begin with brief screening tools like GAD-2 for anxiety or two-question depression screen 6
- If positive, proceed to more comprehensive assessment
Comprehensive Assessment:
- Use the CIDI for full diagnostic evaluation aligned with ICD-11 criteria
- Supplement with disorder-specific scales for severity measurement and treatment monitoring
Regular Monitoring:
- Reassess at 4 and 8 weeks after initiating treatment
- Continue monitoring at 3,6, and 12 months after treatment 6
Important Considerations
The ICD-11 Mental, Behavioral or Neurodevelopmental Disorders chapter contains 21 disorder groupings (compared to 11 in ICD-10), requiring more comprehensive assessment approaches 1
ICD-11 incorporates dimensional elements alongside categorical diagnoses, particularly for:
- Depressive episodes (with qualifiers for melancholic features, anxiety symptoms, panic attacks)
- Schizophrenia and psychotic disorders (with dimensional symptom specifiers for positive, negative, depressive, manic, psychomotor, and cognitive symptoms) 1
When selecting assessment tools, consider:
- Cultural appropriateness and validation across different populations 1
- Literacy level and cognitive capacity of the patient
- Specific symptoms that need monitoring based on presenting concerns
Common pitfalls to avoid:
- Failing to follow up on positive screening results
- Relying solely on symptom counts without considering functional impact
- Overlooking medical causes of symptoms (e.g., thyroid disorders, medication side effects) 6
- Not addressing barriers to treatment adherence
By using these structured assessment tools aligned with ICD-11 criteria, clinicians can improve diagnostic accuracy, monitor treatment response, and ultimately improve patient outcomes in terms of morbidity, mortality, and quality of life.