Depression
Patient Health Questionnaire (PHQ-9)
A 9-item screen for depression severity.
About this test
The PHQ-9 is one of the most widely used depression screening tools. It measures how often you have been bothered by common symptoms of depression over the last two weeks.
What your score means
| Score | Interpretation |
|---|---|
| 0–4 | Minimal depression |
| 5–9 | Mild depression |
| 10–14 | Moderate depression |
| 15–19 | Moderately severe depression |
| 20–27 | Severe depression |
About this questionnaire
The PHQ-9 is a freely available screening questionnaire. We present it exactly as published and add a plain-language explanation of your result.
It is for education and self-reflection, not a diagnosis — a score is a snapshot, not a label. If your result worries you, talk to a qualified professional. See how we choose and check our tests and our editorial standards.
Further independent, authoritative sources on this topic:
Frequently asked questions
How do I start learning my depression level?
Answer all nine items based on the last two weeks. Your total (0–27) maps to a severity band from minimal to severe.
Does the PHQ-9 ask about suicidal thoughts?
Yes. Item 9 asks about thoughts of self-harm. If you are in crisis, contact your local emergency number or a crisis line immediately.
Can the PHQ-9 diagnose depression?
No. It screens for symptom severity. A diagnosis requires a qualified clinician.
Is the PHQ-9 free?
Yes. It is in the public domain and free to use.
Related screenings
Read more: Could It Be Depression? The PHQ-9 Depression Test, Explained
Source: Kroenke, Spitzer & Williams (2001). Public domain (Pfizer).