OA-185: Rendering Provider Not Eligible to Perform Service

What Does OA-185 Mean?

With OA (Other Adjustments), the rendering provider eligibility issue was flagged during coordination of benefits. Resolve the provider's enrollment status before resubmitting.

CARC 185 indicates that the rendering provider — the individual who actually delivered the service — does not meet the payer's requirements for performing the billed service. The provider may not be enrolled with the payer, their NPI could be invalid or inactive, their professional license may not cover the service, their credentialing may be pending, or they may have been excluded from federal healthcare programs.

This code is common when new providers join a practice before credentialing is complete, when claims are submitted with incorrect provider information, or when a provider's scope of practice does not include the billed service. Unlike CARC 183 (referring provider) and CARC 184 (ordering provider), this code specifically targets the provider who physically performed the service.

How to Resolve

1. Identify which payer flagged the issue Review the remittance to determine which payer identified the ineligible rendering provider.
2. Resolve the provider's eligibility Correct NPI errors, complete credentialing, or appeal with documentation.
3. Resubmit through the COB sequence Submit the corrected claim through the proper payer order.

How to Prevent OA-185

• Verify rendering provider eligibility with all payers before submitting claims

Also Filed As

The same CARC 185 may appear with different Group Codes:

Related Denial Codes