Adjustment Disorder – Support for Expats in Tokyo

You moved to Tokyo for an exciting career opportunity — but three months in, you cannot sleep, you dread going to the office, and everything that used to excite you feels like a burden. If this sounds familiar, you may be experiencing adjustment disorder, one of the most common mental health conditions among expats in Japan. The good news: it is highly treatable, especially when caught early. At Tokyo Hub Clinic, Dr. Ichiro Kamoshita provides English-language evaluation and treatment specifically designed for the challenges international residents face in Japan.

Last updated: March 2026. Content supervised by medical professionals at Tokyo Hub Clinic.

What Is Adjustment Disorder?

Adjustment disorder is a stress-related condition that develops when you have difficulty coping with a significant life change or stressful event. Unlike generalized anxiety or major depression, adjustment disorder is directly linked to an identifiable stressor — and symptoms typically appear within three months of that stressor. For expats in Tokyo, this could be a job transfer, a breakup, immigration difficulties, or the accumulated weight of navigating daily life in a foreign culture.

The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) classifies adjustment disorder into several subtypes depending on the predominant symptoms: depressed mood, anxiety, mixed anxiety and depression, disturbance of conduct, or a combination of these. In Japan, adjustment disorder (適応障害, tekiō shōgai) is widely recognized in clinical practice and is one of the leading reasons employees take medical leave from work.

Symptoms — Do Any of These Apply to You?

Adjustment disorder can manifest in many ways. You may recognize yourself in some of the following:

Persistent sadness or hopelessness that was not there before your move to Japan
Excessive worry or anxiety about work, relationships, or daily tasks
Difficulty concentrating at work or during conversations
Sleep disruption — trouble falling asleep, staying asleep, or sleeping too much
Withdrawal from social activities you used to enjoy
Irritability or emotional outbursts that feel disproportionate to the situation
Physical symptoms such as headaches, stomach problems, chest tightness, or fatigue
Feeling overwhelmed by things that should be manageable
Crying more than usual or feeling emotionally numb
Avoidance behaviors — skipping social events, calling in sick, or isolating at home

If several of these resonate — and they started after a specific life change — adjustment disorder is a strong possibility. The symptoms are real, they are valid, and they respond well to professional support.

Why Expats in Tokyo Are Especially Vulnerable

Living abroad is inherently stressful, but Japan presents a unique set of challenges that can amplify adjustment difficulties. Understanding these factors is the first step toward recovery.

Culture Shock and the Language Barrier

Even the most enthusiastic Japan lovers can find themselves exhausted by the constant effort of navigating a society where communication, social norms, and expectations differ fundamentally from what they know. Simple tasks — opening a bank account, seeing a doctor, reading a letter from your landlord — can become sources of deep frustration when the language barrier turns them into multi-hour ordeals.

Japanese Workplace Culture

For many expats, the workplace is the primary stressor. Japan’s corporate environment operates on a set of unwritten rules that can feel invisible yet absolute: the expectation of long working hours (zangyō), the pressure to conform to group decisions, the hierarchy-driven communication style, and the concept of “reading the air” (kūki wo yomu) — understanding what is meant without it being said. When you do not know the rules, every interaction can feel like a test you did not study for.

Social Isolation

Building a social network in Tokyo takes time and effort. Colleagues may be friendly but maintain a clear boundary between work life and personal life. Making close Japanese friends as an adult can be challenging due to cultural differences in what friendship looks like. Many expats find themselves relying on a small, transient group of fellow foreigners — and when those friends leave Japan, the isolation deepens.

Loss of Identity and Support Systems

When you move to a new country, you leave behind the support systems that helped you cope with stress: family, old friends, your therapist, your gym routine, your favorite coffee shop. At the same time, your professional identity may shift — you might go from being a confident, competent professional to feeling like the person who always needs help. This identity disruption is a powerful but often overlooked trigger for adjustment disorder.

How We Can Help — Dr. Kamoshita’s Approach

At Tokyo Hub Clinic, we specialize in treating the intersection of mind and body — an approach known as psychosomatic medicine (shinryō naika, 心療内科). This makes us uniquely qualified to address adjustment disorder, which often manifests through both emotional and physical symptoms.

Dr. Ichiro Kamoshita, M.D., Ph.D. brings decades of clinical experience in psychosomatic medicine and internal medicine. He understands the specific pressures that international residents face in Japan — the cultural disconnection, the communication barriers, the professional challenges — because he has spent his career at the intersection of Japanese and international medicine.

Our approach to adjustment disorder is integrative:

Comprehensive assessment — We take the time to understand your full situation: your stressors, your history, your physical symptoms, and your goals. The initial consultation typically takes 30 to 45 minutes.
Mind-body perspective — If your adjustment disorder is causing headaches, insomnia, digestive problems, or chest tightness, we address both the psychological root cause and the physical symptoms simultaneously.
Culturally informed care — We understand that your experience is shaped by the unique dynamics of being a foreigner in Japan. We do not just treat symptoms — we help you develop strategies for navigating your specific environment.
All consultations in English — You can express yourself fully and clearly, without the added stress of trying to explain complex emotions through a language barrier.

What to Expect — Your First Visit

We understand that visiting a mental health clinic for the first time — especially in a foreign country — can feel intimidating. Here is exactly what happens, step by step:

Book your appointment — Reserve your slot through our online booking system (available 24/7) or call us at 03-6261-7070. Let us know the reason for your visit so we can prepare.
Initial consultation (30–45 minutes) — Dr. Kamoshita will meet with you one-on-one in a private, comfortable setting. He will ask about your current symptoms, your life circumstances, your medical history, and what you hope to achieve. There is no judgment — only understanding.
Assessment and diagnosis — Based on your consultation, Dr. Kamoshita will determine whether your symptoms meet the criteria for adjustment disorder or another condition. If physical symptoms are present, we may run basic tests to rule out other causes.
Treatment plan — Together, you will create a personalized treatment plan that may include counseling strategies, medication (if appropriate), lifestyle modifications, and a follow-up schedule.
Follow-up visits — Adjustment disorder often improves significantly within a few weeks to months of treatment. Follow-up visits are shorter (15–20 minutes) and focus on tracking your progress and adjusting the plan as needed.

Treatment Options for Adjustment Disorder

One of the most encouraging things about adjustment disorder is that it is highly responsive to treatment. Unlike chronic conditions that may require years of management, adjustment disorder is often resolved within a defined timeframe — especially when you receive professional support early.

Psychotherapy and Counseling

Talk therapy is the first-line treatment for adjustment disorder. Cognitive behavioral therapy (CBT) helps you identify and reframe the thought patterns that are keeping you stuck. Problem-solving therapy focuses on developing concrete strategies for the specific stressors in your life. For expats, therapy often includes building coping mechanisms for cultural challenges and reestablishing a sense of control.

Medication (When Appropriate)

Not all patients with adjustment disorder need medication — but when anxiety, insomnia, or depressed mood are severe enough to interfere with daily functioning, short-term pharmacotherapy can provide essential relief. Dr. Kamoshita may prescribe anxiolytics for acute anxiety, sleep aids for insomnia, or low-dose antidepressants if depressive symptoms are significant. All prescriptions are carefully monitored and adjusted.

Lifestyle and Environmental Modifications

Sometimes the most powerful interventions are practical ones. We may work with you on sleep hygiene, exercise routines, social engagement strategies, or even workplace communication techniques. If your work environment is a major stressor, we can provide medical documentation to support workplace accommodations or medical leave — a well-recognized practice in Japan.

Medical Leave (Kyūshoku) Support

In Japan, employees diagnosed with adjustment disorder are entitled to take medical leave (kyūshoku, 休職) with partial income replacement through the health insurance system’s injury and illness allowance (shōbyō teatekin). Dr. Kamoshita can issue the necessary medical certificate (shindan-sho) and guide you through the process — something many English-speaking doctors in Tokyo are not equipped to do.

For Expats and International Residents in Japan

If you are living in Japan as a foreign national, here are some important things to know about adjustment disorder treatment in this country:

Mental health care is covered by National Health Insurance (NHI) — If you are enrolled in Japan’s NHI or employer-provided health insurance (shakai hoken), your consultations and most prescribed medications are covered at the standard 30% co-pay rate.
Japanese clinics differ from Western ones — In Japan, psychosomatic medicine clinics (shinryō naika) handle conditions like adjustment disorder, whereas in many Western countries these would be seen by a psychiatrist or psychologist. Dr. Kamoshita is qualified to provide both medical treatment and therapeutic guidance.
No referral is needed — You can book directly with us. Unlike many countries where you need a GP referral to see a specialist, Japan’s healthcare system allows direct access to specialists.
Confidentiality is absolute — Your employer will not be notified of your visit unless you choose to share that information. If you decide to apply for medical leave, the diagnosis is shared only through the formal medical certificate process.
Travel insurance may apply — If you are visiting Japan on a short-term basis, some travel insurance policies cover mental health consultations. We can provide documentation to support your insurance claim.

Insurance and Fees

Tokyo Hub Clinic accepts National Health Insurance (NHI), employer-provided social insurance (shakai hoken), and travel insurance. Here is a general guide to costs:

First visit (with insurance): Approximately ¥10,000–¥15,000 (30% co-pay, including initial assessment)
Follow-up visits (with insurance): Approximately ¥5,000–¥8,000
Medication costs: Covered separately at your pharmacy under the same insurance

If you do not have Japanese health insurance, self-pay rates apply. For detailed pricing, please visit our pricing page.

Frequently Asked Questions

What is the difference between adjustment disorder and depression?

Adjustment disorder is directly triggered by a specific stressor and typically resolves within six months once the stressor is removed or the person adapts. Major depression, on the other hand, can develop without a clear trigger, tends to be more severe, and often requires longer-term treatment. However, untreated adjustment disorder can evolve into major depression — which is why early intervention is so important.

Is it just culture shock, or do I need professional help?

Culture shock is a normal part of international relocation and usually resolves on its own as you adapt. However, if your symptoms are severe enough to interfere with your work, relationships, or daily functioning — or if they have lasted more than a few weeks without improvement — it may have progressed beyond normal culture shock into adjustment disorder. When in doubt, a professional assessment can provide clarity and peace of mind.

Can my employer find out I visited a mental health clinic?

No. All medical consultations in Japan are strictly confidential. Your employer will not be notified unless you choose to share the information — for example, if you apply for medical leave, in which case a medical certificate (without detailed diagnosis) is submitted through the standard HR process.

How long does treatment for adjustment disorder take?

Most patients see significant improvement within 4 to 12 weeks of starting treatment. Some resolve their symptoms in just a few sessions. The duration depends on the severity of your symptoms, the nature of the stressor, and your engagement with the treatment plan. Adjustment disorder has one of the best prognoses among mental health conditions.

Do I need to speak Japanese to receive treatment?

No. All consultations with Dr. Kamoshita are conducted entirely in English. Your prescriptions will be explained in English, and we can help you navigate the pharmacy process as well.

You Do Not Have to Push Through This Alone

Adjustment disorder is treatable — and the sooner you get support, the faster you recover. Book a confidential consultation with Dr. Kamoshita today.

Book an Appointment

Call 03-6261-7070

Tokyo Hub Clinic
Hotel New Otani Garden Court 2F, 4-1 Kioi-cho, Chiyoda-ku, Tokyo
Nearest stations: Akasaka-mitsuke / Nagatacho
By appointment only · 24-hour online booking · All consultations in English