CO-140: Patient ID Number and Name Do Not Match

What Does CO-140 Mean?

CO-140 is the most common pairing. The CO group code means this is a contractual processing requirement — the payer needs matching identification to process the claim, and the provider is responsible for submitting correct information. The patient cannot be billed for the rejected amount. The provider must correct the data and resubmit. This is not an appealable denial — it requires a data correction.

CARC 140 is a straightforward identity verification failure. The payer looked at the member ID number and the patient name on your claim, compared them to their enrollment database, and found they do not match. The payer cannot process the claim because they cannot confirm who the patient is. This is not a coverage denial, a coding issue, or a medical necessity dispute — it is purely a data problem.

The most common cause is a data entry error — a transposed digit in the member ID, a misspelled name, or a name formatted differently than the payer expects (e.g., including or omitting a middle initial). Name changes are the second most frequent trigger, especially when a patient gets married, divorced, or legally changes their name but either the provider or the payer has not updated their records. Insurance card turnover is another common source — patients receive new member IDs when they change plans, employers, or plan years, and the old ID may still be in the provider's system.

From a workflow standpoint, CARC 140 is one of the most preventable denial codes. It can almost always be avoided by verifying patient demographics against the insurance card at check-in and running an eligibility check before claim submission. When you do receive this denial, resolution is typically fast — identify the correct member ID and name, update the claim, and resubmit.

Common Causes

How to Resolve

Compare the member ID and patient name on the claim against the insurance card and payer records, correct the mismatch, and resubmit.

1. Verify member ID and name Compare the claim data to the patient's current insurance card. Check for typographical errors, outdated IDs, and name discrepancies.
2. Correct the claim Update the member ID and name to match the payer's enrollment records exactly.
3. Resubmit promptly Resubmit the corrected claim as soon as the data is verified. CARC 140 corrections are straightforward and should not be delayed.
4. Update patient records Correct the patient's demographic information in your billing system to prevent this rejection on future claims.

Common RARC Pairings

The RARC code tells you exactly what triggered the CO-140:

How to Prevent CO-140

• Copy the patient's insurance card at every visit and verify the member ID and name match your billing system records
• Run electronic eligibility verification before or at the time of service to catch ID/name mismatches before claim submission
• Ask patients at check-in whether their insurance, name, or demographic information has changed
• Implement front-end claim scrubbing that validates patient identification fields against payer eligibility data before submission

General Prevention

• Copy the patient's insurance card at every visit and verify the member ID and name match what is in your billing system
• Verify patient eligibility electronically before or at the time of service to catch ID/name mismatches before claim submission
• Ask patients at check-in whether their name, insurance, or demographic information has changed since their last visit
• Implement front-end claim scrubbing that checks patient identification fields against payer eligibility responses before submission
• Train registration staff to enter the patient's legal name exactly as it appears on the insurance card, not nicknames or alternate spellings
• Conduct regular audits of patient demographic data to identify and correct outdated information

Also Filed As

The same CARC 140 may appear with different Group Codes:

Related Denial Codes