Diagnosing Mental Health Disorders

People seeking help for addiction often co-present with mental health problems and diagnosing mental health disorders is essential for recovery.

Many people seeking help for addiction also experience mental health challenges.

Why Diagnosis Matters

To provide the most effective treatment, it’s essential to conduct a comprehensive assessment of both mental and physical health. Addressing only the addiction or only the mental health disorder limits the chances of long-term recovery. Common mental health conditions associated with addiction include:

• Eating disorders
• Anxiety disorders
• Post-Traumatic Stress Disorder (PTSD)
• Obsessive-Compulsive Disorder (OCD)
• Depression
• Bipolar disorder
• Drug-induced psychosis

Understanding the relationship between mental health and substance use allows recovery professionals to create dual-diagnosis treatment plans tailored to each individual, significantly improving outcomes.

Taking a Cautious Approach to Diagnosis

While addressing co-occurring mental health and substance use disorders is central to effective recovery, it’s equally important to approach diagnosis with care, especially in the early stages of treatment.

Substance use can mimic, mask, or exacerbate symptoms of mental health conditions. For example, anxiety, depression, or even psychotic-like symptoms may appear during intoxication, withdrawal, or early recovery, making it challenging to distinguish between substance-induced effects and underlying mental health disorders.

Because of this overlap, mental health diagnoses cannot be rushed. Health professionals typically allow for a period of abstinence and stabilisation before determining whether a mental health condition is pre-existing, exacerbated, or induced by substance use. This careful approach ensures that any diagnosis is accurate and that treatment plans are appropriate, effective, and tailored to the individual’s true needs.

By prioritising stability first, clients can engage in recovery with a clearer mind, and treatment teams can more confidently identify and address co-occurring disorders without assumptions or premature conclusions.

Steps to Correctly Diagnose Mental Health Disorders

A thorough diagnosis typically involves consultation with multiple health professionals, often beginning with a visit to a general practitioner or another allied health professional within the residential rehabilitation treatment program.

Physical assessment

The first step is a comprehensive physical examination. Substance use can take a significant toll on the body, and symptoms of mental health disorders like anxiety and depression may sometimes be caused by physical conditions such as thyroid disorders.

Physical assessments help:

• Identify underlying medical issues contributing to symptoms
• Inform the detox plan
• Determine additional treatments needed for conditions caused by substance use, such as liver disease

Psychological assessment

Next, an allied health professional, such as a registered psychologist, conducts a comprehensive assessment. By discussing the client’s substance use history, mental health history, and personal circumstances, the clinician determines whether mental health issues are substance-induced or pre-existing conditions worsened by drug or alcohol use.

Dual diagnosis

When a client is found to have both a substance use disorder and a mental health disorder, this is called a dual diagnosis. Dual diagnosis treatment addresses both conditions simultaneously, which is essential for effective recovery.

It’s common for clients to be diagnosed with more than one mental health disorder. Examples of common co-occurring disorders include:

• Alcohol use and depression
• Alcohol use and panic disorder
• Cocaine use and severe depression
• Ice (crystal methamphetamine) use and schizophrenia
• Poly-drug use and PTSD

You can find out more here about common co-occurring disorders.

The results of the psychological assessment guide the treatment plan, ensuring the client receives the most appropriate support.

Customised Treatment Plans

When the diagnosis is complete, the multi-disciplinary treatment team discuss and implement a treatment plan, based on our holistic treatment model.

Once the initial phase of detox has been completed, clients will be supported to re-establish not only their physical but also their emotional, psychological, social and spiritual well-being during the residential treatment program and aftercare program. This integrated approach maximises the chances of lasting recovery and improved quality of life.

If you or someone you know is thinking about suicide, please immediately call:

• Lifeline on 13 11 14
• Kids Helpline on 1800 551 800
• MensLine Australia on 1300 789 978
• Suicide Call Back Service on 1300 659 467