Monday, Aug 3, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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The Claim

A Patient Health Questionnaire-9 (PHQ-9) score of 10 or higher indicates that clinical depression is present.

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The Short Version

A PHQ-9 score of 10 or higher is best understood as a positive depression screen, not a confirmed diagnosis. Research supports it as a common cutoff that suggests possible major depression and warrants clinical evaluation, but authoritative guidance says depression should not be diagnosed solely from that score. The claim overstates what the number alone can establish.

Caveats

  • A screening cutoff is not the same as a clinical diagnosis; false positives occur at PHQ-9 scores of 10 or higher.
  • The wording omits that diagnosis requires clinical assessment, including symptom context, duration, impairment, and differential causes.
  • Some summaries use loose language like “indicates depression,” but authoritative sources frame PHQ-9 >=10 as suggesting possible depression rather than confirming it.

The Receipts

  1. The PHQ-9: Validity of a Brief Depression Severity Measure

    PubMed Central

  2. Accuracy of Patient Health Questionnaire-9 (PHQ-9) for screening to detect major depression: individual participant data meta-analysis

    BMJ

  3. Optimal cut-off score for diagnosing depression with the Patient Health Questionnaire-9 (PHQ-9)

    PubMed Central

  4. Data-Driven Cutoff Selection for the PHQ-9 Depression Screener

    JAMA Network Open

  5. The Accuracy of the Patient Health Questionnaire-9 (PHQ-9) Diagnostic Algorithms: A Systematic Review and Meta-analysis

    CDC Stacks

  6. Patient Health Questionnaire (PHQ-9 & PHQ-2)

    American Psychological Association

  7. The Patient Health Questionnaire-9 for detection of major depression in primary care: diagnostic meta-analysis

    PubMed Central

  8. Enhancing the clinical utility of depression screening

    PubMed Central

  9. Patient Health Questionnaire-9 (PHQ-9)

    University of Washington HIV Web Study

  10. Patient Health Questionnaire (PHQ-9)

    Government of British Columbia

+ 10 more sources — see the full list on Lenz

Filed Under

Patient Health Questionnaire-9

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