What Is the PHQ-9 Depression Screen?
PHQ-9 is a widely used questionnaire for depressive symptoms over the past two weeks. It is a screen — not a diagnosis.
What it asks
Nine items cover interest, mood, sleep, energy, appetite, self-worth, concentration, psychomotor changes, and thoughts of self-harm. Each item scores 0–3; total is 0–27.
Score bands (approximate)
- 0–4: minimal
- 5–9: mild
- 10–14: moderate
- 15–19: moderately severe
- 20–27: severe
How to use the result
Treat it as a signal about recent burden. If scores stay high, functioning drops, or self-harm thoughts appear, contact trusted people and seek professional care promptly.
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Can PHQ-9 diagnose depression?
No. Diagnosis requires a clinician.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Consult a healthcare professional for medical concerns.