CARC 208 Active

PR-208: National Provider Identifier - Not Matched

TL;DR

Patient charges for an NPI mismatch are incorrect. Correct the NPI and request reprocessing.

Action
Review & Decide
Who Pays
Patient
Appeal
No
Patient Impact
Direct Financial
Disclaimer
This content is for informational purposes only and does not constitute professional billing advice. Always verify information against your payer contracts and current coding guidelines. Consult a certified billing specialist for specific claim issues.

What Does PR-208 Mean?

With PR (Patient Responsibility), the patient was assigned charges because the provider NPI could not be matched. This is a provider data issue — correct the NPI and request reprocessing to remove the patient charge.

CARC 208 indicates that the NPI submitted on the claim has a valid format but does not match any provider in the payer's enrollment records. This typically means the provider is not enrolled with the payer, a different NPI was entered by mistake, the NPI has been deactivated, or the wrong NPI type (individual vs. organizational) was used.

Unlike CARC 206 (NPI missing) or CARC 207 (NPI invalid format), CARC 208 specifically means the NPI exists in the NPPES registry but does not correspond to a provider the payer recognizes. The most common resolution is to verify and correct the NPI or complete provider enrollment with the payer.

How to Resolve

  1. Correct the NPI Enter the correct enrolled NPI.
  2. Request reprocessing Submit the corrected claim and request patient charges be reversed.
Do Not Appeal This Code

The NPI on the claim does not match the payer's enrollment records. Verify the correct NPI, ensure the provider is enrolled with the payer, and resubmit the claim with the correct NPI.

How to Prevent PR-208

Also Filed As

The same CARC 208 may appear with different Group Codes:

CO-208 OA-208

Related Denial Codes

PR-13 — Date of Death Precedes Date of Service PR-14 — Date of Birth Follows Date of Service PR-19 — Workers' Compensation Claim PR-20 — Liability Carrier Responsible PR-21 — No-Fault Carrier Responsible

Sources

  1. https://x12.org/codes/claim-adjustment-reason-codes
  2. https://www.mdclarity.com/denial-code/208
  3. https://med.noridianmedicare.com/web/jeb/topics/claim-submission/reason-code-guidance/missing-incorrect-req-npi-info
  4. Codes maintained by X12. Visit x12.org for official definitions.