How to Schedule a Drug Test Appointment Online with LabCorp

What you can do online with LabCorp drug testing

LabCorp (also called LabCorp Drug Screening or TLC Drug Screening depending on the service line) lets you schedule certain drug test appointments through their website without calling. You can search for a nearby testing location, pick a date and time that works for you, and confirm your appointment online. The process takes about five to ten minutes.

Not every type of drug test can be booked this way. Court-ordered tests, tests that require a medical review officer, and some employer-specific panels may need a phone call or a referral code. But routine workplace screenings, personal tests, and many standard five-panel or ten-panel tests can be scheduled online.

When you book online, you'll receive a confirmation email with your appointment details, the address of your testing location, what to bring, and any preparation instructions. You can also reschedule or cancel through the same system if your plans change.

Key Takeaways

• LabCorp's online scheduling works for routine drug tests but not for court-ordered tests or those requiring a medical review officer.
• You will need to bring a valid photo ID and any paperwork your employer or the referring party gave you to your appointment.
• The online system shows you available times at nearby locations and confirms your appointment by email within minutes.
• If you have a referral code or employer account number, entering it during booking ensures the results go to the right place.

Steps to book your appointment online

Go to the LabCorp website and look for the "Schedule a Test" or "Find a Lab" option. You'll be asked to enter your zip code or city to see testing locations near you. The map will show hours, address, and whether each location offers online scheduling.

Click on the location you prefer. You'll see available appointment times for the next several days, usually in two-hour windows. Select the date and time that works for you. The system will then ask you to choose the type of test you need — this is where you pick from options like "5-Panel Drug Screen," "10-Panel Drug Screen," or other specific panels your employer requested.

Enter your personal information: full name, date of birth, phone number, and email address. If you have a referral code, employer account number, or doctor's order, enter it now so results are routed correctly. Review the confirmation screen, and you're done. Your confirmation email will arrive within a few minutes.

What to bring to your appointment

Bring a valid photo ID — a driver's license, passport, or state ID card. LabCorp will not test you without it. If you're under 18, bring a parent or guardian and their ID as well.

Bring any paperwork you received from your employer, court, or doctor. This includes referral forms, employer account numbers, or court orders. If you booked using a referral code, write it down or have it on your phone in case the lab needs to verify it.

Wear clothing that allows easy access to your arm, since most drug tests involve a urine sample or a quick arm swab. Arrive 10 to 15 minutes early to allow time for check-in, even though your appointment is confirmed online.

When you cannot book online

Court-ordered tests almost always require a phone call or in-person visit to LabCorp. The court or your attorney will provide a specific location and may require you to bring the court order itself. Call LabCorp's main line or the location directly to confirm the appointment and ask what paperwork to bring.

Tests that include a medical review officer (MRO) — common in federal jobs, transportation, and safety-sensitive roles — cannot be scheduled online because the MRO needs to review your medical history and medications before the test. You'll need to call the number on your employer's referral form.

If you have a rare or specialized test panel, or if the online system does not show your employer's name in the dropdown, call LabCorp directly. They can often book you over the phone and send a confirmation email afterward.

How to find your confirmation and reschedule

Your confirmation email contains your appointment number, location address, and a link to manage your appointment. Save this email or take a screenshot. If you need to reschedule, click the link in the email or log back into the LabCorp website, enter your appointment number and date of birth, and select a new time.

Cancellations can also be made through the same link. If you cancel less than 24 hours before your appointment, some locations may charge a fee, though this varies. If you miss your appointment without canceling, you may lose any prepayment and will need to reschedule.

If you cannot find your confirmation email, check your spam folder. If it is not there, call the testing location directly — they have your appointment in their system and can print a confirmation for you.

What happens after your test

The lab will process your sample and send results to whoever ordered the test: your employer, the court, your doctor, or you directly if it was a personal test. Results typically arrive within 24 to 48 hours, though some employers receive them faster through a secure portal.

If the test is negative (no drugs detected), you'll usually see a simple "negative" result. If the test is positive or inconclusive, a medical review officer may contact you to ask about medications or medical conditions that could explain the result. This is normal and does not mean you failed — it means the MRO is doing their job.

You can usually view your own results through the LabCorp patient portal if you created an account during scheduling. Log in with your email and date of birth to see your test status and results once they're ready.

Common reasons the online system will not let you book

If the system says "this test type is not available for online scheduling," it usually means your test requires an MRO review or a referral code that the system cannot verify. Call the location or the number on your referral form.

If no appointment times appear for your chosen location, that location may be fully booked or may not offer online scheduling. Try a different nearby location, or call to ask about cancellations or early-morning slots that sometimes do not show online.

If the system asks for a referral code and you do not have one, contact your employer or the party that ordered the test. They will provide the code, which you can then use to reschedule online or give to the lab when you arrive.

Frequently Asked Questions

Can I book a drug test online if my employer ordered it?

Yes, if your employer gave you a referral code or account number. Enter it during online scheduling so the results go to your employer. If you do not have a code, call the lab or your employer's HR department to get one before booking.

What if I need the test results by a specific date?

Book an appointment at least two to three days before your deadline to allow time for processing. Results usually arrive within 24 to 48 hours, but weekends and holidays can delay them. Call the lab if you need rush processing — some locations offer it for an extra fee.

Do I have to use the location the online system suggests?

No. The system shows you nearby locations, but you can search for a different zip code to find a location that works better for your schedule. All LabCorp locations use the same online booking system and process results the same way.

What if I booked online but cannot make my appointment?

Use the link in your confirmation email to reschedule or cancel. If you cancel within 24 hours of your appointment, some locations charge a fee. If you miss the appointment without canceling, contact the location directly to reschedule.

Can I see my test results online after my appointment?

If you created a LabCorp patient account during scheduling, you can log in to view your results once they're processed, usually within 24 to 48 hours. Your employer or the ordering party may also receive results through their own secure portal.