Patient Health Questionnaire-9 for depression severity assessment.
Over the last 2 weeks, how often have you been bothered by the following problems?
PHQ-9 is a screening and symptom-severity measure, not a diagnosis. A score of 10 or more is the usual threshold for further evaluation; diagnosis requires a clinical interview.
Get a personalized explanation of these results — what they actually mean for your situation, and how small changes would affect them.
No. Phq9 Depression is free, with no signup required, and nothing you enter leaves your browser.
Phq9 Depression is built on published formulas and reference ranges from established health sources. We revisit it periodically as guidance evolves; the "Last reviewed" date above shows when that last happened. If something looks wrong, tell us with the feedback button in the bottom-right corner.
No. Phq9 Depression gives you a general estimate based on the inputs you provide, not a diagnosis. Existing conditions, medications, and individual history all change what a number actually means for you. Treat this as a starting point for a conversation with a doctor or other qualified health professional, not a substitute for one.