Getting a mental health diagnosis
A diagnosis is a starting point for understanding and care, not a verdict on who you are.
By the numbers
When mental health conditions tend to begin, and how diagnosis is studied.
Who it affects
Diagnosis worldwide
What is a mental health diagnosis?
A shared name for a pattern of experiences, used to plan care.
A diagnosis is a name a trained professional gives to a pattern of thoughts, feelings and behaviours that causes distress or gets in the way of daily life. It helps you and your care team talk about what’s happening and plan what might help.
Professionals use shared manuals so that a diagnosis means the same thing from place to place. Around the world, many health systems use the World Health Organization’s International Classification of Diseases (ICD-11).
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The American Psychiatric Association says mental health conditions are treatable and improvement is possible. A diagnosis is one tool for working out an individual plan.
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A diagnosis describes some of your experiences. It doesn’t describe your values, your strengths, your relationships or your future.
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The American Psychiatric Association notes that a diagnosis is not the same as a need for treatment. How severe things are, how much distress they cause and how much they affect daily life all count too.
Why people look for a diagnosis
Common reasons, and common worries, about getting assessed.
Researchers who reviewed 78 studies found that receiving a mental health diagnosis can be a turning point, described in both positive and negative ways. People’s reasons and feelings vary a lot.
Reasons people give
- To find care and support that fits
- To have a word for what they’re going through
- To rule out physical causes
- To understand themselves, or a child, better
Worries people have
- Being judged or treated differently
- Being “labelled” for life
- What it could mean for work or school
- What if it doesn’t fit?
Who can assess you?
Different professionals, different starting points.
Many people start with a primary care provider, who can check physical health and refer to a mental health professional. NIMH lists psychologists, psychiatrists and clinical social workers among the professionals who offer assessment and diagnosis.
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They can ask screening questions, check for physical causes and refer you on. NIMH suggests starting here if you’re not sure where to go.
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Psychologists can carry out detailed assessments, which may include interviews and questionnaires. They are among the professionals NIMH lists for assessment and diagnosis.
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They can assess both physical and mental health and are often involved when things are complex. Questions about treatment choices are best talked through with your clinical provider.
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Licensed clinical social workers often work in clinics, schools and community centers. NIMH lists them among providers who may offer assessment and care, including by video.
What happens in an assessment
Conversation, questions and checks, put together like a puzzle.
There is usually no single test for a mental health condition. A professional pieces together information from several places over one or more visits.
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Expect questions about your feelings, sleep, energy, relationships, work or school, big stresses and family history. NIMH says describing when things started, how strong they are and how often they happen helps.
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The American Psychiatric Association says assessment often includes a physical exam, and may include blood work or neurological tests. For example, a thyroid problem can cause symptoms that look like depression.
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The provider observes and asks questions about things like your mood, how your thoughts flow, your attention and memory. They might ask you to repeat words or explain a saying.
It is not used on its own. Providers combine it with your history, physical checks and sometimes lab tests.
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You may fill in forms about mood, worry or other experiences. In primary care these are often screening tools, which the U.S. Preventive Services Task Force recommends for depression in all adults.
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NIMH notes that a friend or relative who comes along may give the provider a helpful view of how you’ve been doing. For children, school reports and a parent interview are usually part of it.
Screening, assessment and diagnosis
Three words that sound alike but mean different things.
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Screening is offered to many people, even those who feel fine. The U.S. Preventive Services Task Force recommends depression screening for all adults and anxiety screening for adults 64 and younger.
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An assessment looks at your whole situation, including physical health, history and how things affect your life.
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A diagnosis comes after an assessment. It should be explained to you in plain language, with time for your questions.
When a child is being evaluated
What a thorough evaluation for a child usually includes.
NIMH says a mental health professional looks at a child’s emotions, behaviour and situation to decide whether support would help, and what kind would fit best.
A thorough evaluation usually includes
- An interview with parents or caregivers about development, temperament, relationships, health and past support
- Information from school, such as reports on behaviour and skills
- Talking with and observing the child, if needed
Questions NIMH suggests asking
- How are parents involved?
- How will we measure progress?
- How soon might we see change, and how long does support usually last?
- Is the approach backed by research?
A diagnosis can be refined
Why a first diagnosis may change as more is learned.
Making a diagnosis is a process, and it can take time. A first diagnosis is the best explanation with the information available. As more is learned, it may be refined or changed.
In a study of 286 patients referred from primary care to a specialist centre, most referral diagnoses were refined or changed after a closer look. That study was about medical care in general, but the idea applies widely: more information can sharpen the picture.
Questions to ask, and your rights
You can ask, understand and get a copy of your records.
NIMH encourages people to ask for more information about any diagnosis. A large review of people’s experiences named information-sharing and collaboration as key themes, and called for diagnosis to be a shared, individual process.
Questions you can ask
- “Can you explain this diagnosis in plain words?”
- “How sure are you, and what else did you consider?”
- “What does this mean for my day-to-day life?”
- “What are my options for support from here?”
- “Where can I read more that you trust?”
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Under the HIPAA Privacy Rule, you can see and get a copy of your health record, even if you have unpaid bills. Providers can take up to 30 days, and can extend once by up to 30 more days if they tell you why.
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NIMH notes that discussions with your provider are private and can’t be shared without your permission.
How to support someone being assessed
Ways to help a loved one through the process.
Things that can help
- Afterwards, ask how they feel, not just what they were told
- Help keep track of appointments and paperwork, if they want
- Let them decide who they tell
- Offer to come along and take notes
- Remind them they are still the same person you love
When and where to get help
You don’t need a diagnosis to ask for support.
You don’t need a diagnosis, or to wait for one, before getting support. If things feel hard now, talk with your primary care provider or a mental health professional.
Free, confidential support (U.S.)
- 988 Suicide & Crisis Lifeline: call or text 988, or chat at 988lifeline.org, 24/7
- Crisis Text Line: text HOME to 741741, 24/7
- FindTreatment.gov: search for mental health services near you
- SAMHSA National Helpline: 1-800-662-4357, free and confidential, 24/7, in English and Spanish
Outside the U.S.: Find A Helpline (findahelpline.com) lists free, confidential helplines in more than 175 countries.
📝 Worksheets for this guide
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Sources
- American Psychiatric Association (APA). What is Mental Illness?
- American Psychiatric Association (APA). Stigma, Prejudice and Discrimination Against People with Mental Illness
- World Health Organization (WHO). International Classification of Diseases (ICD)
- The Lancet Psychiatry (peer-reviewed) (2018). Experiencing mental health diagnosis: a systematic review of service user, clinician, and carer perspectives across clinical settings (Perkins, Ridler, Browes, Peryer, Notley & Hackmann, The Lancet Psychiatry 5(9): 747–764)
- National Institute of Mental Health (NIMH). Tips for Talking With a Health Care Provider About Your Mental Health
- National Institute of Mental Health (NIMH). What Is Telemental Health?
- National Institute of Mental Health (NIMH). Children and Mental Health: Is This Just a Stage?
- Cleveland Clinic. Mental Status Exam
- U.S. Preventive Services Task Force (USPSTF) (2023). Depression and Suicide Risk in Adults: Screening (Recommendation, June 2023)
- U.S. Preventive Services Task Force (USPSTF) (2023). Anxiety Disorders in Adults: Screening (Recommendation, June 2023)
- Journal of Evaluation in Clinical Practice (peer-reviewed, via PubMed) (2017). Extent of diagnostic agreement among medical referrals (Van Such, Lohr, Beckman & Naessens, Journal of Evaluation in Clinical Practice 23(4): 870–874)
- Office of the National Coordinator for Health IT (HealthIT.gov), U.S. Department of Health and Human Services. How to Get Your Health Record
- Office of the National Coordinator for Health IT (HealthIT.gov), U.S. Department of Health and Human Services. Get It: How to Get Your Health Record
- National Institute of Mental Health (NIMH). Help for Mental Illnesses
- 988 Suicide & Crisis Lifeline (SAMHSA). 988 Suicide & Crisis Lifeline
- Crisis Text Line. Crisis Text Line
- Substance Abuse and Mental Health Services Administration (SAMHSA). Crisis Text Line (Disaster Behavioral Health Information Series resource)
- Substance Abuse and Mental Health Services Administration (SAMHSA). SAMHSA’s National Helpline
- Centers for Disease Control and Prevention (CDC). Caring for Your Mental Health (mental health resources)
- ThroughLine (Find A Helpline). Find A Helpline
- International Association for Suicide Prevention (IASP). Crisis centres and helplines
This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.
