BDI-II Scoring Guide · Beck Depression Inventory
The BDI-II (Beck Depression Inventory, Second Edition) is a 21-item self-report questionnaire that measures the severity of depressive symptoms over the past two weeks. Scores range 0–63 across four bands (minimal, mild, moderate, severe), and it is widely used in CBT research and clinical settings.
BDI-II Score Interpreter
Score 14–19. Mild depressive symptoms above the minimal range.
21 items rated 0–3; sum all items for a total of 0–63. The BDI-II is © Pearson and administration requires purchase from Pearson — this interpreter classifies an already-calculated score. Always review Item 9 (suicidal thoughts) independently; any score above 0 requires immediate follow-up.
| Total score | Interpretation |
|---|---|
| 29+ | SevereScore 29–63. Severe depressive symptoms; immediate clinical assessment recommended, including suicidality screening (Item 9) and crisis protocol. |
| 20–28 | ModerateScore 20–28. Moderate depressive symptoms; active clinical follow-up indicated. |
| 14–19 | MildScore 14–19. Mild depressive symptoms above the minimal range. |
| 0–13 | MinimalScore 0–13. Minimal depressive symptoms within the normal range. |
Beck et al. (1996). Severity bands per the BDI-II manual (Pearson). Educational reference only — not a diagnostic tool.
For reference only — not an assessment, diagnosis, or medical advice. This page provides scoring reference material; interpretation and clinical decisions rest with a qualified clinician.
The Beck Depression Inventory-II (BDI-II) is a 21-item self-report measure that assesses the presence and severity of depressive symptoms. A widely validated tool for clinical depression assessment and treatment monitoring.
What the BDI-II measures
The Beck Depression Inventory-II (BDI-II) is one of the most widely used scales for measuring the severity of depression. Developed by Dr. Aaron T. Beck in 1996 as a revision of the original BDI, the BDI-II aligns with DSM-IV and DSM-5-TR criteria for major depressive disorder.
The BDI-II consists of 21 items, each corresponding to a symptom of depression. Items assess symptoms such as sadness, pessimism, loss of interest, fatigue, sleep disturbance, and suicidal thoughts. Respondents rate each item on a 4-point scale (0-3) based on how they have felt over the past two weeks.
The total score ranges from 0 to 63, with higher scores indicating more severe depression. The BDI-II is extensively validated across diverse populations and is used for screening, treatment monitoring, and research purposes in clinical psychology and psychiatry.
Clinical Use Only
The BDI-II is a screening tool. A full clinical evaluation of depression requires a full clinical evaluation conducted by a qualified mental health professional. The BDI-II helps identify symptoms but does not replace clinical judgment.
Copyright Notice
The BDI-II is © Pearson. Administration requires purchase from Pearson, and use in a third-party digital product requires a commercial licence from Pearson.
How to administer the BDI-II
Self-Report Format
Patients complete the 21-item questionnaire independently. Can be administered in waiting rooms, online portals, or via secure digital links before appointments.
Administration Time
Typically takes 5-10 minutes to complete. Scoring involves summing all 21 items for a total score between 0 and 63.
Regular Monitoring
Administer at intake, every 2-4 weeks during treatment, and at discharge. Consistent intervals enable tracking of symptom changes and treatment effectiveness.
Instructions ask respondents to consider symptoms over the past two weeks, including the day of administration.
Administration Best Practices
- Ensure patients understand the 0-3 rating scale before starting
- Review item 9 (suicidal thoughts) promptly, do not delay follow-up
- Use consistent versions (paper or digital) for valid longitudinal tracking
- Combine with PHQ-9 or GAD-7 for detailed symptom assessment
BDI-II scoring and interpretation
The total BDI-II score (0–63) maps to four severity bands:
| Score range | Severity |
|---|---|
| 0–13 | Minimal |
| 14–19 | Mild |
| 20–28 | Moderate |
| 29–63 | Severe |
Suicidality Screening (Item 9)
Item 9 assesses suicidal thoughts and intentions. Any score above 0 on this item requires immediate clinical follow-up:
- Ratings run from 0 to 3; higher ratings reflect more severe suicidal thoughts or wishes
- A rating on Item 9 is not a risk assessment; it signals the need for one
Always conduct safety assessment when item 9 > 0
Monitoring Treatment Response
Clinically significant change on the BDI-II:
- 5-point decrease: Minimal clinically significant change
- ~8–10 point decrease: Reliable clinical improvement (based on Jacobson & Truax, 1991 RCI framework applied to BDI-II SEM ~3–4 points)
- ≥50% reduction: Standard definition of treatment response in depression clinical trials
Track scores longitudinally to demonstrate treatment efficacy and identify non-responders early.
Clinical Verification Essential
The BDI-II is a screening tool, not a diagnostic tool. A full clinical evaluation of Major Depressive Disorder requires full clinical evaluation by a qualified professional.
Psychometric properties
In the cited comparison study (Beck, Steer, Ball and Ranieri, 1996), the BDI-II was self-administered to 140 psychiatric outpatients with various psychiatric disorders and showed a coefficient alpha of .91. Mean BDI-II totals were about 2 points higher than on the earlier BDI-IA, and outpatients endorsed about one more symptom, which is one reason the two versions should not be mixed in longitudinal tracking.
Limitations
- Not diagnostic. The BDI-II measures symptom severity; a diagnosis of major depressive disorder requires a full clinical evaluation.
- Self-report. Scores depend on the respondent's insight, reading level and willingness to disclose symptoms.
- Somatic items. Items such as fatigue, sleep and appetite change can be elevated by medical illness, pregnancy or medication effects.
- Item 9 needs separate review. The total score can be low while Item 9 is endorsed, so suicidal thoughts must be followed up independently of the severity band.
- Licensed. The BDI-II is © Pearson; administration requires purchase from Pearson.
BDI-II vs Other Depression Assessment Tools
Understanding the differences between depression screening tools helps you choose the right tool for your clinical setting and diagnostic needs.
BDI-II vs PHQ-9: Detailed vs Brief Depression Screening
Clinical Guidance: The PHQ-9 is ideal for busy primary care settings and integrated care models where rapid screening is essential and cost matters. Its direct alignment with DSM-5-TR criteria makes documentation straightforward. Choose the BDI-II when you need detailed symptom profiling for specialized mental health settings, treatment outcome research, or when licensing cost is not a barrier. Both are excellent for monitoring treatment response over time.
When to use BDI-II: Specialized mental health clinics, research studies, detailed symptom profiling needed, licensing budget available.
BDI-II vs HAM-D: Self-Report vs Clinician-Rated
Clinical Guidance: The BDI-II captures the patient's internal experience of depression, while the HAM-D relies on clinical observation and interview. In research settings, both are often used together to capture subjective and objective perspectives. For routine clinical practice, the BDI-II is more practical, no clinician time required, patient completes independently. The HAM-D is preferred in pharmaceutical trials where standardized clinician ratings are needed.
Complementary use: Some clinics use BDI-II for weekly self-monitoring and HAM-D for full clinical evaluations every 4-8 weeks. This balances efficiency with thorough assessment.
BDI-II vs Original BDI: Modern Update vs Classic Version
Clinical Guidance: Always use the BDI-II, not the original BDI. The BDI-II aligns with current DSM-5-TR diagnostic criteria and uses a consistent 2-week time frame matching the MDD diagnostic requirement. The original BDI is outdated and should only be used when comparing to historical data. If you encounter studies citing "BDI" without specifying the version, check the publication date, post-1996 likely means BDI-II.
Important: Do not mix BDI and BDI-II scores in longitudinal tracking, they are not interchangeable. If switching from BDI to BDI-II, note the version change in your records and interpret trends cautiously.
Documenting BDI-II scores in clinical notes?
BDI-II scores belong in the Objective section of your note. See our SOAP notes guide and Intake Notes guide for templates and examples.
This library is an academic and clinical reference. A scale described here is not necessarily offered in HiBoop; each page says whether it is.
Bill this assessment
In the US, the BDI-II Scoring Guide · Beck Depression Inventory is usually billed under these CPT codes. Payer rules vary.
Using this assessment in practice
For clinicians
Send it as a gentle check-in before the session. The score is waiting when you open the chart, and the trend builds itself.
For individuals
This page is a clinical reference, not a diagnostic tool. If you have concerns about your own symptoms, bring this information to a qualified mental health professional.
Frequently Asked Questions
What is the BDI-II?
The BDI-II (Beck Depression Inventory, Second Edition) is a 21-item self-report depression severity scale aligned with DSM-IV and DSM-5-TR criteria, scoring 0 to 63. Each item asks how the patient has felt over the past two weeks, rated 0 to 3. Developed by Aaron T. Beck (1996) as a revision of the original BDI.
How do you score the BDI-II?
Patients rate each of 21 depression symptoms on a 4-point scale (0 to 3) based on how they have felt over the past two weeks. Item scores are summed for a total ranging from 0 to 63. Severity bands are 0 to 13 minimal, 14 to 19 mild, 20 to 28 moderate, and 29 to 63 severe depression.
Can I bill CPT 96127 for the BDI-II?
Yes, CPT 96127 (brief emotional/behavioural assessment) can be billed when a licensed BDI-II is administered, scored, and documented with clinical interpretation. The BDI-II takes 5 to 10 minutes and meets the 96127 threshold. Up to four scales can be billed per visit. Note that BDI-II administration also requires purchase from Pearson.
What ICD-10 code does the BDI-II support?
The BDI-II supports screening and severity tracking for ICD-10-CM codes F32.x (Major depressive disorder, single episode) and F33.x (Major depressive disorder, recurrent), plus F34.1 (Persistent depressive disorder/Dysthymia). Specific codes such as F32.1 (moderate) and F33.2 (recurrent severe without psychotic features) align with BDI-II severity bands.
How accurate is the BDI-II?
The BDI-II shows excellent internal consistency (Cronbach alpha 0.92) and high test-retest reliability (r = 0.93). At a cutoff of 14 or higher, the scale has approximately 81% sensitivity and 92% specificity for major depressive disorder in clinical samples. A 5-point reduction is the standard threshold for clinically meaningful change in measurement-based care workflows.
References
- 1.Beck AT, Steer RA, Ball R, Ranieri W. Comparison of Beck Depression Inventories -IA and -II in psychiatric outpatients. J Pers Assess. 1996;67(3):588-597.View source
Last reviewed: Jun 2, 2026
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