You filled out the PHQ-9 and scored 15. That number feels heavy — I get it. But taking the time to assess yourself took guts. A PHQ-9 score of 15 falls in the “moderately severe depression” range, and it means you deserve professional support. Not next month. Soon.
This isn’t a diagnosis. It’s a screening result that strongly suggests you should talk to a healthcare provider — and not put it off.
What the PHQ-9 Score Ranges Look Like
The Patient Health Questionnaire-9 asks about nine depression symptoms over the past two weeks. Each one gets rated from 0 (not at all) to 3 (nearly every day), for a total possible score of 0 to 27.
Here’s how the severity shakes out:
- 0 to 4: Minimal. Few and mild symptoms. Treatment usually isn’t needed
- 5 to 9: Mild. Some symptoms showing up. Watchful waiting, lifestyle changes, or brief counseling might be enough
- 10 to 14: Moderate. Clinically significant. Treatment with therapy, medication, or both is recommended
- 15 to 19: Moderately severe. This is you. Active treatment — medication plus therapy — is strongly recommended
- 20 to 27: Severe. Immediate treatment needed. Medication is usually essential, with therapy alongside it
What Scoring 15 Actually Feels Like Day-to-Day
People scoring around 15 typically deal with several of these on most days:
- Feeling down, depressed, or hopeless for big chunks of the day
- Lost interest or pleasure in stuff you used to enjoy
- Sleep is wrecked — either way too much or not nearly enough
- Exhaustion so deep that tiny tasks feel like climbing a mountain
- Can’t focus on work, reading, or even a conversation
- Appetite is either gone or out of control
- Feeling worthless or drowning in guilt
- Moving or talking noticeably slower — or feeling restless and fidgety
At this severity, depression is usually messing with your ability to work, maintain relationships, and take care of yourself. You might be getting through each day, but it’s taking everything you’ve got.
Question 9: About Thoughts of Self-Harm
The PHQ-9 asks whether you’ve had thoughts that you’d be better off dead, or thoughts of hurting yourself. If you scored 1 or higher on that question, please reach out now:
- 988 Suicide and Crisis Lifeline: Call or text 988
- Crisis Text Line: Text HOME to 741741
- Emergency services: Call 911 or go to your nearest ER
Thoughts of self-harm at any score level need immediate professional attention. You don’t need a score of 20 to “earn” help. That’s not how this works.
What Treatment Looks Like at This Level
Clinical guidelines for a PHQ-9 of 15 to 19 call for active treatment. That usually means a combination of approaches.
Therapy
Cognitive Behavioral Therapy (CBT) is the most studied treatment for depression. It helps you spot and change the thought patterns that keep feeding the depression. But it’s not the only option:
- Behavioral Activation: Focuses on gradually doing more meaningful activities — even when motivation is completely absent
- Interpersonal Therapy: Works on relationship difficulties that are contributing to or worsening your depression
- Acceptance and Commitment Therapy: Helps you engage with life in meaningful ways even while painful emotions are present
Therapy typically runs weekly and shows measurable improvement within 8 to 12 sessions for most people at this severity level.
Medication
At a score of 15, guidelines say medication should be on the table alongside therapy. SSRIs are the most commonly prescribed first-line option:
- Sertraline (Zoloft)
- Escitalopram (Lexapro)
- Fluoxetine (Prozac)
These take 4 to 6 weeks to reach full effect. Side effects are usually mild and often fade within the first couple weeks. And if the first med doesn’t work? Your doctor can try a different one. Finding the right fit sometimes takes patience — but it’s worth it.
Lifestyle Changes (as Backup, Not Replacement)
These aren’t substitutes for therapy and medication at your severity level. But they absolutely support recovery:
- Exercise: 30 minutes of moderate exercise 3 to 5 times per week has evidence rivaling antidepressants for milder depression. At your level, it works best layered on top of other treatments
- Sleep habits: Depression and sleep problems feed off each other in a brutal cycle. Consistent wake times, no screens before bed, cool dark bedroom — these help break it
- Any social contact: Depression screams at you to isolate. Fight it. Even texting a friend or sitting in a coffee shop interrupts the spiral
- Cut the alcohol: Alcohol is a depressant. Even moderate drinking can worsen depression symptoms and mess with your medication
A Realistic Timeline for Getting Better
Most people with moderately severe depression respond well to treatment. Here’s roughly what to expect:
- Weeks 1-2: You’ve started treatment. It might not feel like anything’s changing. Medication side effects may pop up but are usually mild
- Weeks 3-4: Subtle shifts — maybe sleep improves a bit, or you notice more energy. Other people might see changes before you do
- Weeks 6-8: Medication reaches full effect. Therapy skills start becoming second nature. PHQ-9 scores typically start dropping
- Months 3-6: Significant improvement for most people. Many see their PHQ-9 fall below 10
- Months 6-12: Continued improvement. Relapse prevention becomes the focus in therapy
Recovery isn’t a straight line. Bad days will happen. They don’t mean treatment has failed — they mean you’re still in the middle of getting better.
Keep Tracking — It Matters
Retake the PHQ-9 every 2 to 4 weeks while you’re in active treatment. Your provider will probably have you fill it out at each visit. Watch the trend, not any single score.
Worth noting: consider also checking your anxiety levels with the GAD-7 anxiety screening, since depression and anxiety love to tag-team. If both are present, treatment may need to tackle both.
The DASS-21 assessment can give you a broader view by measuring depression, anxiety, and stress all at once.
Frequently Asked Questions
Is a PHQ-9 of 15 considered severe?
No — 15 falls in the “moderately severe” bucket. Severe depression starts at 20 to 27. But moderately severe still warrants active treatment with therapy and often medication. Don’t downplay it.
Can I get better without medication?
Some people at this severity improve with therapy alone, but guidelines recommend at least having the medication conversation. Therapy plus medication typically outperforms either one solo at this level. Make the decision with your healthcare provider — not Dr. Google.
How long will I need treatment?
Guidelines recommend continuing antidepressants for at least 6 to 12 months after you hit remission. Stopping too early significantly raises relapse risk. Therapy length varies but typically runs 12 to 20 sessions for a first episode.
