History of Drug or Alcohol Use in the Immigration Medical Exam: Does It Matter?

Roughly one in three green card applicants report feeling anxious about the medical history portion of their immigration exam — and substance use history is one of the most misunderstood parts of the entire process. If you or a family member is preparing for an immigration medical exam in Brooklyn, you may be wondering whether past drug or alcohol use could derail your application. The short answer is: it depends — and the details matter enormously.

This article breaks down exactly how civil surgeons evaluate substance use history, what the real risks are, and what you can do to approach your exam with confidence and clarity.

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Key Takeaways

• A past history of drug or alcohol use does not automatically make you inadmissible — what matters is whether a current disorder exists.
• Civil surgeons use the DSM-5-TR to classify substance use disorders as Class A (inadmissible) or Class B (a condition of note) findings.
• Alcohol use disorders are evaluated separately from drug-related disorders and carry their own inadmissibility criteria.
• Routine drug testing is not a standard part of the immigration medical exam, but a civil surgeon may order lab work if there is a clinical reason to do so.
• Applicants found inadmissible due to a substance use disorder may be eligible to apply for a waiver.

What the Immigration Medical Exam Actually Evaluates

The immigration medical exam — formally documented on USCIS Form I-693 — is a mandatory health screening for anyone applying for lawful permanent residence in the United States. Only a USCIS-certified civil surgeon is authorized to conduct and sign this exam. It is not the same as a routine physical, and it covers specific health categories defined by federal immigration law.

The exam includes:

• Review of medical history, including mental health and substance use
• Physical examination of all major organ systems
• Required vaccinations based on the CDC immunization schedule
• Tuberculosis (TB) screening
• Syphilis serology for applicants 15 years and older
• Gonorrhea testing for applicants 15 years and older

One section that surprises many applicants is the mental health and substance use review. The civil surgeon will ask direct questions about current and past use of alcohol and psychoactive drugs. This is not optional — it is a required component of the exam.

For a full walkthrough of what to expect during this process, see our step-by-step guide to the I-693 medical examination process.

How Substance Use History Is Classified

Civil surgeons do not make arbitrary judgments about substance use. They follow a structured clinical framework based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). Under this system, substance use disorders are classified into two categories:

Classification	What It Means	Immigration Impact
Class A	A current substance use disorder involving a controlled substance, OR an alcohol use disorder with harmful behavior	Renders the applicant inadmissible
Class B	A condition that does not currently meet Class A criteria but is noted in the applicant’s history	Does not cause inadmissibility but is documented

The critical distinction is between a current disorder and a past history

A history of substance use — even significant use — that no longer meets the clinical criteria for an active disorder will typically not result in a Class A finding. Nonetheless, if the civil surgeon determines that the applicant currently has a substance use disorder involving a controlled substance listed in the Controlled Substances Act, that is a Class A condition and will lead to a finding of inadmissibility.

Drug Use vs. Alcohol Use: Are They Treated Differently?

Drug-related disorders are evaluated based on whether the substance involved is listed in the Controlled Substances Act (CSA). If an applicant currently has a substance use disorder involving a CSA-listed drug, this is automatically a Class A condition.

Alcohol use disorders are evaluated separately. Not every alcohol use disorder leads to inadmissibility. For an alcohol-related finding to be classified as Class A, the applicant must have an alcohol use disorder combined with associated harmful behavior. Examples of harmful behavior may include driving under the influence, domestic violence, or other conduct that poses a risk to the safety of others.

This means that an applicant with a history of alcohol use disorder who has been in sustained recovery and has no documented harmful behavior may not receive a Class A designation — though the civil surgeon will document the history carefully.

Comprehending these nuances is one reason why working with an experienced USCIS-certified civil surgeon in Brooklyn matters so much.

Will You Be Drug Tested During the Exam?

This is one of the most common questions we hear. The answer is: not routinely.

Drug testing is not a standard, required component of the immigration medical exam. Civil surgeons are not required to administer a urine drug screen for every applicant. Nevertheless, if the medical history review or physical examination reveals clinical indicators of substance use — such as physical signs of intoxication, track marks, or significant discrepancies in the applicant’s history — the civil surgeon has the authority to order laboratory testing.

In practice, this means that honest disclosure during your medical history review is both ethically required and practically wise. Attempting to conceal substance use history that is later detected through lab work or physical examination can create far more serious problems than honest disclosure would have.

The Role of Honest Disclosure

USCIS and the CDC both emphasize that applicants must provide accurate and complete information during the immigration medical exam. This includes:

• Current and past use of alcohol
• Current and past use of prescription medications, particularly controlled substances
• Current and past use of illegal drugs
• Any prior treatment for substance use disorders, including rehabilitation programs

Many applicants fear that disclosing past substance use will automatically hurt their case. In reality, the civil surgeon is trained to evaluate the full clinical picture — including evidence of treatment, recovery, and time elapsed since last use. A civil surgeon who sees that an applicant had a substance use disorder five years ago, completed a treatment program, and has been in sustained recovery is looking at a very different clinical picture than one who is evaluating an active, untreated disorder.

Honesty also protects you from a finding of misrepresentation, which carries its own serious immigration consequences.

What Happens If You Receive a Class A Finding?

A Class A finding related to a substance use disorder does not necessarily mean the end of your immigration journey. Applicants who receive a Class A determination have the option to apply for a waiver of inadmissibility.

Main facts about waivers

• Approval is at the discretion of USCIS and is not guaranteed.
• USCIS may attach terms, conditions, and controls to an approved waiver to protect public safety.
• Supporting documentation — such as evidence of treatment, recovery, and community ties — can strengthen a waiver application.
• The waiver process takes additional time and should be approached with the guidance of an immigration attorney.

If you receive a Class B finding, no waiver is needed, but the condition will be documented in your record.

Mental Health, Stigma, and the Medical Exam

It is worth acknowledging that many applicants feel shame or fear around disclosing substance use history. This is understandable — substance use disorders carry significant social stigma, and the stakes of an immigration application are high. Our article on how clinical diagnosis can affect the stigma of mental illness explores this dynamic in more depth.

At AllHealth Diagnostic and Treatment Center, our USCIS-certified civil surgeons approach every exam with professionalism and compassion. The goal of the examination is not to judge your past — it is to assess your current health status according to federal guidelines.

Getting Your Immigration Medical Exam in Brooklyn

If you are a green card applicant living in Midwood, Flatbush, or anywhere in Brooklyn, AllHealth Diagnostic and Treatment Center offers USCIS-certified immigration medical exams at our main clinic location.

Main Clinic (Immigration Medical Exams)

• Address: 1655 East 13th Street, Brooklyn, NY 11229
• Phone: (718) 339-6300
• Email: medical@allhealthdtc.com
• Hours: Monday – Saturday, 9:00 AM – 6:00 PM

Our civil surgeons are approved by USCIS to conduct and sign Form I-693. We serve a diverse, multilingual community and understand the unique pressures that come with the immigration process. Beyond immigration medical exams, our comprehensive medical services in Brooklyn include primary care, mental health and psychiatry, and specialty care for the whole family.

For families who also need pediatric support — including developmental evaluations or behavioral health services — our IDD Department at 1100 Coney Island Avenue, 2nd Floor, Brooklyn, NY 11230 offers ABA therapy services in Brooklyn and other specialized programs. You can reach that department at (718) 942-4944 or IDD@allhealthdtc.com.

FAQs:

Does a history of marijuana use affect my immigration medical exam?

Yes, it can — but the main factor is whether you currently have an active substance use disorder. Marijuana is still classified as a controlled substance under federal law, which means a current marijuana use disorder would be a Class A condition. Nevertheless, past use that no longer meets the clinical criteria for an active disorder, and that has no associated harmful behavior, may not result in inadmissibility. Be honest with your civil surgeon about your history so the full clinical picture can be assessed accurately.

What if I completed a drug or alcohol rehabilitation program before my exam?

Completing a rehabilitation program is a positive factor in your clinical evaluation. A civil surgeon who sees documented evidence of treatment and sustained recovery will assess your current status — not just your past. Evidence of rehabilitation can also support a waiver application if one becomes necessary. Bring any documentation of treatment programs, discharge summaries, or letters from treating providers to your exam.

Can my civil surgeon refer me for additional mental health evaluation?

Yes. If the civil surgeon determines that a more thorough evaluation is needed to properly classify a mental health or substance use condition, they may refer you to a specialist before finalizing the I-693. This is a standard part of the process and does not automatically mean a negative outcome. Our team can coordinate referrals as needed to ensure your exam is completed thoroughly and fairly.

How long does a Class A finding for a substance use disorder stay on my record?

A Class A finding is specific to your current application and exam. If your circumstances change — for example, you enter and complete treatment, achieve sustained recovery, and reapply — a new civil surgeon will conduct a new evaluation based on your current health status at that time. USCIS evaluates each application on its own merits, and a prior Class A finding does not permanently bar future applications, though it will be part of your immigration history.

References

• Centers for Disease Control and Prevention. (2023). Medical history and physical examination for panel physicians. U.S. Department of Health and Human Services. https://www.cdc.gov/immigrant-refugee-health/hcp/panel-physicians/medical-history-physical-examination.html

• Centers for Disease Control and Prevention. (2025). Mental health evaluations for civil surgeons and panel physicians. U.S. Department of Health and Human Services. https://www.cdc.gov/immigrant-refugee-health/hcp/panel-physicians/mental-health.html

• U.S. Citizenship and Immigration Services. (2023). Instructions for Form I-693, Report of Medical Examination and Vaccination Record. U.S. Department of Homeland Security. https://www.uscis.gov/sites/default/files/document/forms/i-693instr.pdf

• American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). American Psychiatric Association Publishing.

• National Institute on Drug Abuse. (2022). Drugs, brains, and behavior: The science of addiction. National Institutes of Health, U.S. Department of Health and Human Services. https://nida.nih.gov/publications/drugs-brains-behavior-science-addiction