What Your LabCorp Confirmation Number Means and How to Find It

Your confirmation number is the reference code LabCorp sends you after you book an appointment

When you schedule a lab appointment through LabCorp — either online, by phone, or in person — you receive a confirmation number. This is a unique code that identifies your specific appointment in LabCorp's system. It typically appears in your confirmation email, text message, or on the receipt you get at the location.

The confirmation number is what you use to reschedule, cancel, or check the status of your appointment. It's also what LabCorp staff will ask for if you call with questions about your visit. Keeping this number handy makes the whole process faster and reduces the chance of mix-ups.

Key Takeaways

• Your confirmation number arrives by email, text, or receipt immediately after you book your LabCorp appointment.
• You'll need this number to reschedule, cancel, or verify your appointment details with LabCorp.
• If you don't have your confirmation number, LabCorp can look up your appointment using your name, date of birth, and phone number.
• Save your confirmation email or take a photo of your receipt so you have the number when you arrive for your appointment.

Where to find your confirmation number

If you booked online through LabCorp.com, your confirmation number appears on the screen immediately after you complete your booking. The same number is sent to your email address within minutes. Check your inbox — including your spam or promotions folder — for an email with the subject line something like "Your LabCorp Appointment Confirmation."

If you booked by phone with a LabCorp representative, they will give you the confirmation number verbally and may offer to text or email it to you. Write it down right away or ask them to send it by text so you have it in writing.

If you booked in person at a LabCorp location, you'll receive a printed receipt with your confirmation number on it. Take a photo of this receipt with your phone, or write the number down somewhere you'll find it later.

What the confirmation number looks like

LabCorp confirmation numbers are typically 6 to 10 characters long and may include both letters and numbers. The exact format can vary, but it will be clearly labeled as "Confirmation Number," "Appointment Number," or "Reference Number" on your email or receipt.

Do not confuse your confirmation number with other codes that might appear in your email, such as a patient ID or lab requisition number. Your confirmation number is the one tied specifically to your appointment date and time.

Using your confirmation number to manage your appointment

To reschedule your appointment, go to LabCorp.com, select "Manage My Appointment," and enter your confirmation number along with your date of birth. You can then choose a new date and time from available slots. You can also call LabCorp's appointment line and give the representative your confirmation number — they can reschedule you over the phone.

To cancel your appointment, use the same "Manage My Appointment" tool online, or call and provide your confirmation number. LabCorp will confirm the cancellation and may ask if you'd like to reschedule instead.

If you arrive at your appointment and the staff cannot find your record, give them your confirmation number first. This is faster than spelling out your name or repeating your date of birth.

If you've lost your confirmation number

You don't need to panic if you can't find your confirmation number. LabCorp can look up your appointment using your name, date of birth, and the phone number you used when booking. Call LabCorp's main appointment line or visit a location in person and provide these details. The staff will pull up your appointment and give you the confirmation number if you need it.

If you're trying to reschedule or cancel online and don't have your confirmation number, you can still call LabCorp directly. Phone support is often faster than trying to recreate a lost email or receipt.

What happens at your appointment with your confirmation number

Bring your confirmation number with you on the day of your appointment — either on your phone, printed out, or written down. When you check in, the staff will ask for it along with your ID. Having it ready speeds up the check-in process and confirms that you're in the system for the right tests at the right time.

If you've had any changes to your contact information since you booked — a new phone number or address — let the staff know during check-in. They can update your record so future communications reach you.

Frequently Asked Questions

Can I use my confirmation number to check my lab results?

No. Your confirmation number is only for managing your appointment. To view lab results, you'll use the LabCorp Patient Portal with your login credentials, or call LabCorp's results line with your name and date of birth. Results are usually available within 24 to 48 hours after your test.

What if I received two confirmation numbers for the same appointment?

This sometimes happens if you booked online and then called to confirm, or if the system sent duplicate emails. Use either number — they both refer to the same appointment. If you're unsure which is correct, call LabCorp and they can verify which one is active in their system.

Do I need my confirmation number if I'm a walk-in?

Walk-in appointments don't have confirmation numbers because you haven't pre-booked. Just bring your ID and any lab requisition your doctor gave you. If you decide to pre-book instead, you'll receive a confirmation number at that time.

Will LabCorp text me reminders using my confirmation number?

LabCorp may send appointment reminders by text or email, but these use your phone number or email address, not your confirmation number. You can manage your reminder preferences through the Patient Portal or by calling LabCorp directly.