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N913 Remark Code: Duplicate EVV Records for Visit

N913 means more than one Electronic Visit Verification (EVV) record exists for the date and time of the service billed. The payer cannot tell which visit record supports the claim, so it does not pay until the overlap is resolved.

Quick facts

Code
N913 (RARC N913)
Status
Active In use since July 1, 2025.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The unpaid visit amount. The agency must resolve the conflicting EVV records; the member is not billed.
Official description
More than one Electronic Visit Verification record exists for the date and time of this service.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N913 means

EVV systems log each home care visit by member, caregiver, service, and time. When the payer matches a claim to visits, it expects one clean record for each billed time block. N913 means it found overlapping records instead.

Overlapping visits raise a question about whether the time was billed twice, so payers stop the claim until the agency sorts out which record is real.

Common causes

  • The caregiver checked in on the app and also by phone.
  • Office staff created a manual visit on top of a captured one.
  • Two caregivers were logged for the same member and time without an approved reason.
  • An interface retransmitted visits to the state aggregator.

How to fix it

  1. Pull all EVV records for the member and date.
  2. Identify the valid visit and document why the others are invalid.
  3. Correct the records using your EVV system’s visit maintenance tools and reason codes.
  4. Confirm the aggregator or payer shows a single matched visit.
  5. Resubmit the claim as a corrected claim with frequency code 7 if the payer requires it.

How to prevent it

Train caregivers on one check-in method, restrict manual visit entry, and review daily overlap exceptions before claims are built.

Codes that may appear with N913

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): A submission or billing error; N913 identifies conflicting EVV data.
  • CO-A1 (Claim/Service denied.): A general denial with N913 giving the EVV reason.
  • N890 (Electronic Visit Verification Data Element Requirements were not met.): The EVV record exists but lacks required data elements.
  • N821 (Electronic Visit Verification System visit not found.): No EVV visit was found for the claim.
  • N818 (Claims Dates of Service do not match Electronic Visit Verification System.): Claim dates of service do not match the EVV system.
  • OA-18 (Exact duplicate claim/service (Use only with Group Code OA except where state workers' compensation regulations requires CO)): An exact duplicate claim, which is a different problem from duplicate visit records.

N913 FAQ

How can two EVV records exist for one visit?

Common reasons are a caregiver clocking in twice, a manual entry added after an automated one, two caregivers recorded for the same member and time, or a system resending a visit.

Is N913 always an error?

Not always. Some services allow two caregivers at once. If so, the records must show that correctly and the claim must be billed according to program rules.

Can I delete the extra record?

Follow your state's EVV visit maintenance rules. Most require documented reasons for changes rather than simple deletion.