A depression screening is a short questionnaire, usually just two to nine questions, that helps identify whether you might be experiencing depression. It’s not a diagnosis on its own. It’s a first step that flags whether a deeper evaluation is needed. Most screenings take less than five minutes and are now a routine part of primary care visits, annual checkups, and prenatal appointments.
What Happens During a Screening
In most cases, you’ll fill out a paper or digital form before or during your appointment. The most widely used tool is the PHQ-9, a nine-question survey that asks how often you’ve been bothered by specific problems over the past two weeks. The questions cover:
- Little interest or pleasure in doing things
- Feeling down, depressed, or hopeless
- Trouble falling or staying asleep, or sleeping too much
- Feeling tired or having little energy
- Poor appetite or overeating
- Feeling bad about yourself, or like you’ve let yourself or your family down
- Trouble concentrating on things like reading or watching television
For each question, you rate how often the problem has affected you: not at all, several days, more than half the days, or nearly every day. Two additional questions cover restlessness or sluggishness and thoughts of self-harm. Your answers are scored on a 0 to 3 scale and added up.
Sometimes your provider will start with an even shorter version called the PHQ-2, which includes only the first two questions about low mood and loss of interest. A score of 3 or higher on the PHQ-2 correctly identifies major depression about 83% of the time, with a 92% accuracy rate for ruling it out. If you score above that threshold, you’ll typically be asked to complete the full nine-question version.
How Scores Are Interpreted
The PHQ-9 produces a total score between 0 and 27. The ranges break down like this:
- 1 to 4: Minimal depression
- 5 to 9: Mild depression
- 10 to 14: Moderate depression
- 15 to 19: Moderately severe depression
- 20 to 27: Severe depression
A score of 10 or above generally signals that further evaluation is warranted. But a high score alone does not mean you have clinical depression. The screening identifies the possibility. Confirming it requires a separate step.
What Happens After a Positive Screen
If your screening suggests depression, your provider will follow up with a more detailed clinical interview. This conversation explores how long your symptoms have lasted, how much they interfere with your daily life, and whether anything else could explain them. The goal is to determine whether your symptoms meet the formal criteria for major depressive disorder.
Part of this process involves ruling out other conditions that can look like depression. Thyroid problems, anemia, vitamin B12 deficiency, and even sodium imbalances can cause fatigue, mood changes, and sleep disruption. For this reason, your provider may order basic blood work, particularly if you’re older or if your symptoms don’t follow a typical pattern. Conditions like bipolar disorder, persistent low-grade depression (sometimes called dysthymia), grief, and substance-related mood changes also need to be considered before landing on a diagnosis.
A positive screen is not something to worry about on its own. It simply opens the door to a fuller conversation about what you’re experiencing.
Who Should Be Screened
The U.S. Preventive Services Task Force recommends depression screening for all adults 18 and older. There’s no firm rule on how often to repeat it, but the general approach is to screen everyone at least once and then rescreen people with risk factors or significant life changes as needed.
For adolescents, guidelines recommend annual screening starting at age 12 using a standardized questionnaire. Evidence for screening children younger than 12 is still limited, so routine screening isn’t recommended for that age group.
Pregnant and postpartum individuals are screened on a separate timeline. Obstetric guidelines call for screening at the first prenatal visit, again later in pregnancy, and at postpartum follow-up appointments. A different tool, the Edinburgh Postnatal Depression Scale, is often used in these settings. It has a maximum score of 30, and a score of 10 or higher suggests possible depression that deserves closer attention.
Cost and Coverage
Medicare covers one depression screening per year at no cost to you, as long as it takes place in a primary care setting where follow-up care or referrals are available and your provider accepts Medicare assignment. Most private insurance plans also cover annual screenings with no copay under preventive care provisions established by the Affordable Care Act. If you’re uninsured, many community health centers include basic mental health screening as part of standard visits.
Why Screening Matters
Depression often develops gradually. The symptoms, things like persistent fatigue, difficulty concentrating, and changes in sleep or appetite, overlap with the kind of stress and exhaustion many people consider normal. A screening catches what you might otherwise dismiss. It takes a subjective experience (“I’ve been feeling off”) and puts a number to it, giving both you and your provider something concrete to act on. For many people, a five-minute questionnaire is the first time anyone has asked them directly, in a structured way, whether they’re struggling.