Quick Answer
Y-BOCS scoring adds 10 items, five about obsessions and five about compulsions, each rated from 0 to 4, for a total from 0 to 40. Common ranges are 0 to 7 subclinical, 8 to 15 mild, 16 to 23 moderate, 24 to 31 severe and 32 to 40 extreme. The score measures severity, not whether you have OCD.
Understanding Y-BOCS Scoring and Interpretation
The Yale-Brown Obsessive Compulsive Scale, usually shortened to Y-BOCS, is the most widely used measure of OCD severity. It has 10 items. The first five ask about obsessions: how much time they take, how much they interfere with life, how distressing they are, how hard you try to resist them and how much control you have. The next five ask the same questions about compulsions. Each item is rated from 0, meaning none, to 4, meaning extreme. Time is anchored in hours: less than one hour a day, one to three, three to eight, or more than eight. Adding the items gives a total from 0 to 40. This guide is part of Dr. Farkas's New York OCD resources.
Common ranges, used in research such as a 2019 study in Biological Psychiatry, are 0 to 7 subclinical, 8 to 15 mild, 16 to 23 moderate, 24 to 31 severe and 32 to 40 extreme. These bands help describe where someone is and what level of care may fit. The Y-BOCS is usually completed with a clinician, who asks follow-up questions to rate each item accurately. A symptom checklist often comes first, listing the kinds of obsessions and compulsions you’ve had. Our guide on measurement-based OCD care explains how scores guide treatment decisions.
For New Yorkers wondering how severe their OCD really is, a Y-BOCS score gives a concrete starting point. NIMH estimates that 1.2% of U.S. adults had OCD in the past year, with higher rates among women (1.8%) than men (0.5%). Secure video visits from anywhere in New York can make it easier to start OCD care without adding travel to an already crowded day.
Y-BOCS severity ranges, obsession and compulsion subscales, and tracking OCD over time are the three ideas this guide covers.
What the score can't tell you
A Y-BOCS total describes severity, but it can’t confirm that symptoms are OCD rather than something else. Anxiety disorders, depression, autism, tics and body-focused repetitive behaviors can overlap. The score also can’t capture everything that matters, like how OCD affects relationships or what you’re avoiding. Some people underreport because symptoms feel embarrassing, and others rate a single bad day. That’s why the Y-BOCS is paired with a clinical interview. The number is one tool, alongside your own description of what’s hardest.
Answering honestly
OCD often involves thoughts that feel shameful, frightening or taboo, and people sometimes hold back when describing them. The Y-BOCS doesn’t require you to explain the content of every thought in detail. It asks about time, distress, interference, resistance and control. Clinicians who treat OCD hear about intrusive thoughts of every kind and understand that these thoughts go against what you value. Honest answers give a more accurate picture. If a question is confusing, say so. There are no right or wrong answers.
Key Takeaways
- The Y-BOCS has 10 items: five on obsessions and five on compulsions.
- Each item is rated 0 to 4, giving a total from 0 to 40.
- Totals of 16 to 23 are usually called moderate and 24 to 31 severe.
- Repeating the scale over time shows whether treatment is working.
Y-BOCS Scoring and Interpretation at a glance
| Total score | Usual label |
|---|---|
| 0 to 7 | Subclinical |
| 8 to 15 | Mild |
| 16 to 23 | Moderate |
| 24 to 31 | Severe |
| 32 to 40 | Extreme |
The two subscales
The Y-BOCS splits into an obsession subscale and a compulsion subscale, each scored from 0 to 20. Looking at them separately can be useful. Someone with mostly mental rituals, like reviewing or neutralizing thoughts, may score high on obsessions while their compulsion score seems lower than expected, since mental compulsions can be easy to overlook. Someone who avoids triggers heavily may have low compulsion time but real impairment. Clinicians account for avoidance when rating. The pattern across the two subscales helps shape exposure and response prevention targets.
Tracking change
The Y-BOCS is especially useful for tracking progress. A baseline score before treatment lets you and your clinician see change clearly. Many studies define response as a drop of about 25% to 35% from baseline, and remission as a low total that stays low. A score moving from 28 to 18, for example, reflects meaningful improvement even though symptoms remain. Because the scale covers the past week, it’s usually repeated every few weeks during active treatment. Flat scores after an adequate medication and therapy trial are a signal to review the plan. Our guides on measurement-based OCD care and the OCD diagnostic interview cover related topics.
OCD severity scoring for New York patients
The Y-BOCS can be completed during a secure video visit with your clinician. Visits run by secure video anywhere in New York, while you’re physically in the state. The practice is in-network with Aetna and Cigna; confirm your New York plan with the office, and see self-pay fees on the Good Faith Estimate page.
Scores and treatment decisions
Y-BOCS scores help time treatment decisions. If you’ve started an SSRI or exposure and response prevention, comparing scores after several weeks shows whether to continue, increase the dose, add therapy or try another approach. Because OCD medications often take 8 to 12 weeks at adequate doses, early scores may change slowly. Scores guide rather than dictate. You and your clinician use them together, alongside what you notice in daily life, to decide on next steps.
When to act on a score
Consider an evaluation if obsessions and compulsions take more than an hour a day, cause strong distress or get in the way of work, relationships or sleep, whatever the number. Scores in the moderate range or higher usually point to structured treatment. If OCD thoughts come with thoughts of self-harm, call or text 988 right away. The score is a guide, and what you’re living with matters most.
The Bottom Line
Y-BOCS Scoring and Interpretation is common and treatable, and careful care can make daily life feel more manageable.
Frequently Asked Questions
What does my Y-BOCS score mean?
Your Y-BOCS total ranges from 0 to 40, based on 10 items about obsessions and compulsions. Common ranges are 0 to 7 subclinical, 8 to 15 mild, 16 to 23 moderate, 24 to 31 severe and 32 to 40 extreme. The score describes how severe symptoms are right now. It doesn't diagnose OCD on its own. Your clinician reviews it alongside your history.
What is a moderate Y-BOCS score?
A Y-BOCS total of 16 to 23 is usually described as moderate. At this level, OCD typically causes clear daily interference and distress. Structured treatment, such as exposure and response prevention and often medication, is usually recommended. Some studies use slightly different bands. Your clinician will explain what your score means for you.
How is the Y-BOCS different from an OCD screener?
An OCD screener helps flag whether OCD might be present. The Y-BOCS measures how severe symptoms are once OCD is suspected or diagnosed. It covers time, interference, distress, resistance and control for both obsessions and compulsions. It's usually completed with a clinician who asks follow-up questions. Both tools support, rather than replace, a clinical evaluation.
How often should the Y-BOCS be repeated?
Because the Y-BOCS covers the past week, it's usually repeated every few weeks during active treatment. That shows whether medication or therapy is helping. Once symptoms are stable, it may be checked at routine reviews. A drop of about 25% to 35% from baseline is often used to define response. Your clinician will suggest a schedule.
Do I have to describe my intrusive thoughts in detail?
No, the Y-BOCS asks mainly about time, distress, interference, resistance and control. You don't need to explain every thought in detail. Clinicians who treat OCD understand that intrusive thoughts go against your values. Sharing more can help with treatment planning when you're ready. Honest answers make the score more accurate.
Can I complete the Y-BOCS during a video visit in New York?
Yes, the Y-BOCS can be completed during a secure video visit from anywhere in New York. Your clinician asks the questions and rates each item with you. You need to be physically in New York during the visit. Scores are compared over time to track progress. Keeping a record helps you see change.
Where to go from here
- Right now, if you're not safe
- Call or text 988, or call 911.
- If you'd like an evaluation
- See how scheduling and telehealth work on the new patient page.
- If you want to keep reading
- Return to our full set of New York OCD guides for more guides. For more help preparing and finding care, see NIMH’s tips for talking with your health care provider and FindTreatment.gov.
How We Reviewed This Page
Written by Steven Lockhart of Health Marketing Group and clinically reviewed by Gabriella I. Farkas, MD PhD, a board-certified psychiatrist. Clinical information comes from the sources listed below, and the page is reviewed every 180 days or when guidance changes.
What’s new: September 29, 2026. Page published.
References
- Y-BOCS severity ranges (table). Biological Psychiatry (2019);85(9):726-734, via PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC6467837/table/tbl2
- International OCD Foundation. What is OCD? https://iocdf.org/about-ocd/
- National Institute of Mental Health. Obsessive-Compulsive Disorder (OCD) statistics. https://www.nimh.nih.gov/health/statistics/obsessive-compulsive-disorder-ocd
- 988 Suicide & Crisis Lifeline. https://988lifeline.org/
- Tips for talking with your health care provider. https://www.nimh.nih.gov/health/publications/tips-for-talking-with-your-health-care-provider
- FindTreatment.gov. https://findtreatment.gov/