How Is Substance Use Disorder Diagnosed?

At America’s Rehab Campuses, we offer a wide range of tools to support you through the recovery process. You have to take the first step to reach out to us to learn more about treatment options.

What Is Substance Use Disorder?

A substance use disorder occurs when a person uses drugs or alcohol consistently, and this causes some type of significant impairment. This could include disability, failure to meet responsibilities, and health problems, according to the Substance Abuse and Mental Health Services Administration. It is a complex condition in which a person is unable to stop using a substance even though they recognize that it is harmful to them if they continue to use it. This could include substances such as:

• Prescription drugs
• Alcohol
• Illicit drugs
• Tobacco products

Types of Substance Use Disorders

Substance use disorder can involve a range of substances, and each type presents its challenges. Common forms of SUD include opioid use disorder (from prescription painkillers or heroin), alcohol use disorder, stimulant use disorder (like cocaine or meth), and sedative or tranquilizer misuse. It’s also possible to have polysubstance use disorder, where a person struggles with multiple substances at once. Recognizing which substances are involved helps guide the most effective treatment approach.

How Is Substance Use Disorder Diagnosed?

Diagnosing substance use disorder requires a formal evaluation and assessment from a trained professional in the field. A psychiatrist or a psychologist often does this. In other settings, a licensed alcohol and drug counselor will conduct the assessment.

To diagnose SUD, professionals conduct a full assessment that looks at more than just lab tests. While blood or urine tests may help identify substances in the body, they don’t determine whether addiction is present. Diagnosis typically involves a clinical interview with a psychiatrist, psychologist, or licensed addiction counselor who asks about substance use patterns, cravings, tolerance, withdrawal symptoms, and how use affects daily life. They use criteria from the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders) to determine the severity of the condition.

Sometimes, you may be asked to complete a self-report. This is an opportunity for you to evaluate your health to determine if you could be struggling with this condition.

Physical examinations

Withdrawal symptoms can vary greatly depending on the substance used. For instance, opioid withdrawal may cause flu-like symptoms, while alcohol withdrawal can be life-threatening without medical support. Signs like tremors, sweating, anxiety, restlessness, and nausea are often present during the detox period. Identifying these physical responses is an important part of the diagnostic process and helps medical providers plan for a safe detox, if needed.

In some situations, doctors will use medical tests as well as a physical examination to determine a person’s health and well-being. They may look for evidence of substance use, such as track marks on the arms due to injecting drugs or dark spots that may indicate a needle puncture mark. They may also look at factors such as a person’s overall health, cognitive function, and hygiene, all of which can be impacted by addiction.

Counselor review

During a meeting with a therapist, you will discuss what you do with drugs and how they impact you. This may include discussing how a person is using drugs, how it is impacting their ability to work, and what it is doing for their day-to-day life. A therapist may also dive into any concerns about mental health disorders.

DSM-5 Criteria for SUD Diagnosis

The American Psychiatric Association outlines 11 criteria used to diagnose substance use disorders in the DSM-5. These criteria help professionals assess the impact of substance use across multiple areas of life. A person who meets two or more of the following criteria within 12 months may be diagnosed with SUD. The severity is classified as mild (2–3 symptoms), moderate (4–5), or severe (6 or more).

Criteria for Diagnosis of Substance Use Disorder

There are four key areas that are criteria for diagnosing addiction. Those include:

• Inability to control use: A person may be unable to control how much they need and may be using more than they used to. They may want to stop using it, but they fail to be able to stop. A person craves the substance.
• Social impairment: A person with substance use disorder is struggling to fulfill the major requirements of their life, such as those at home, work, or school. They may be having trouble with relationships and may be reducing social or recreational activities.
• Risk use: Some people are more likely to engage in high-risk activities, such as driving under the influence, when they have an addiction. They recognize that continued use is dangerous, but continue to use.
• Physical symptoms: This may include evidence of tolerance and withdrawal from use, including the presence of medical conditions brought on by their use.

Medication-Assisted Treatment (MAT)

If a diagnosis of substance use disorder is confirmed, medication-assisted treatment (MAT) may be recommended as part of your recovery plan. MAT uses FDA-approved medications—such as methadone, buprenorphine, or naltrexone—to ease withdrawal symptoms and reduce cravings. It’s especially effective for opioid or alcohol dependence and is typically used in combination with counseling and behavioral therapies. MAT doesn’t replace therapy but enhances it, giving you the stability needed to focus on long-term recovery.

Preventing Relapse and Staying Connected

Recovery isn’t just about stopping drug or alcohol use—it’s about building a life that supports staying sober. That’s why relapse prevention is a key part of every treatment plan. Therapists often help clients identify personal triggers, build healthier coping strategies, and develop routines that promote mental wellness. Joining peer support groups like Alcoholics Anonymous (AA), SMART Recovery, or group therapy programs can provide community support and accountability. Many people find long-term success when they remain engaged in recovery-focused relationships and routines.

How to Get Help if You Are Struggling with Substance Abuse Disorder

If you recognize these signs in yourself or someone you care about, know that help is available. At America’s Rehab Campuses, we offer comprehensive assessments, detox services, therapy, and long-term recovery support tailored to your needs. You don’t have to go through this alone. Reach out today and take the first step toward lasting change, because recovery starts with the right diagnosis and the right team by your side.