What is the LABCORP charge on my credit card?

What the LABCORP charge usually means

A charge labeled LABCORP is typically from Labcorp, a large U.S. clinical laboratory company that processes blood work, urine tests, and other diagnostic testing ordered by a doctor, clinic, hospital, or telehealth provider. In most cases, the transaction is a patient-responsibility balance such as a copay, deductible amount, coinsurance, or a self-pay lab invoice. The charge can appear days or weeks after your appointment because claims may be processed after insurance adjudication.

If you recently had lab work, this descriptor is often legitimate. The amount may not match your expected cost exactly if your insurer re-priced services, applied part of your deductible, or denied a code. You may also see a charge if someone on your insurance plan (spouse or dependent) had testing and your card was used for payment.

Why it appeared on your statement

• You paid at a Labcorp patient service center at check-in or check-out.
• You paid an invoice online or by phone through Labcorp billing.
• A prior balance was collected after insurance finished processing.
• A payment plan installment or stored-card payment was processed.
• A family member used your card for a medical lab invoice.

Even though this page is specific to LABCORP, statement descriptors can vary by processor and channel. If you compare merchants, you may notice very different formats on unrelated charges like Patreon or Cash App.

How to verify the charge quickly

• Match the transaction date and amount against recent lab visits, explanation of benefits (EOB) documents, and email receipts.
• Check your Labcorp invoice or patient portal records for open balances and payment confirmations.
• Ask household members whether they completed testing and used your card.
• Call Labcorp Patient Billing at 800-845-6167 (Mon-Fri, business hours ET) and request invoice-level detail.
• Confirm the last four digits of the card on file and the posting date.

When you call, have your statement, date of service, and invoice number ready. That usually shortens resolution time and helps billing support identify whether the charge came from a direct payment, an automated payment setup, or a corrected claim balance.

How to cancel or stop future charges

LABCORP charges are usually one-time medical billing charges, not a typical subscription. If you are on a payment arrangement, ask Labcorp billing to remove stored payment credentials and confirm that auto-pay is disabled. Request written confirmation by email or portal message where available. If the balance is valid but difficult to pay at once, ask about approved payment-plan options rather than disputing a legitimate medical debt.

When and how to dispute

Dispute through your card issuer if the charge appears unauthorized, duplicated, or clearly incorrect and billing support cannot resolve it promptly. Use your bank app or call the number on the back of your card, then provide:

• Transaction date, amount, and descriptor exactly as posted.
• Your contact attempts with Labcorp and any case/reference numbers.
• Evidence such as invoices, EOBs, portal screenshots, or proof of cancellation.

Most issuers set deadlines for filing disputes, so act quickly. If the charge is valid, a chargeback may be reversed. If it is fraudulent or billed in error, your issuer can usually issue provisional credit while the case is investigated.